RANK / Surname, First Name M.I.

This is a static pressure caused by the weight of water solely due to its height above the measurement point.

When water flows fast through a region, the pressure falls below the water vapors pressure causing bubbles to form on this hole openings inside the ballast pipeline. Which of the following is the correct name for the hole openings pointed by the red arrow in the image?

When water flows rapidly through a section as the water level drops, the pressure that causes bubbles to form in an image with a red arrow marked and these bubbles of phenomenon create is called?

What is the most common cause of recurring such vibrations that can damage the pump?

This condition is similar to the formation of small pits on a surface as a consequence of corrosion which is often caused by concavity in a surface (wear and tear).

This phenomenon typically occurs when a valve closes abruptly at the end of a pipeline system, and a pressure surge propagates into the line causing the valve or pump to rupture.

What should an individual's behavior be when opening or closing the valve?

How to prevent a water hammer if a ballast pipeline is in a vacuum condition?

Which of the following procedures is the correct sequence of the ballast water operation before STARTING a pump?

Choose from the following effects of air drawing on the ballast pump? (Select the answers that apply)

Among the following procedures, which are the appropriate steps to avoid water hammer? (Select the answers that apply)

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet, presence of pitting, noise and vibration, causing air to enter the pump

Close valves slowly to avoid pressure surge., Begin ballast operation with small capacity and at slow speed., Pay attention to the difference in pressure on both ends of the valve.

CAPT/ MALAKI, MANOLO P.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet, presence of pitting, noise and vibration

Close valves slowly to avoid pressure surge., Pay attention to the difference in pressure on both ends of the valve.

CO TORREON, MERLITO G.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

causing air to enter the pump

Begin ballast operation with small capacity and at slow speed.

It is necessary to open a valve carefully, but without any limitation in the closure of the valve.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

presence of pitting, noise and vibration

Begin ballast operation with small capacity and at slow speed.

OIC-NW/ BINAYUG, JOHN EDMAR B.

It is necessary to open a valve carefully, but without any limitation in the closure of the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

causing air to enter the pump, presence of pitting, noise and vibration

Begin ballast operation with small capacity and at slow speed.

3/O CORDER, RONALD JR. C.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

presence of pitting, noise and vibration, as the tank liquid level of the ballast water ascent, causing air to enter the pump, whirlpools and eddies around the suction inlet

Begin ballast operation with small capacity and at slow speed., Pay attention to the difference in pressure on both ends of the valve., Close valves slowly to avoid pressure surge., Fill the ballast line with freshwater and confirm positive pressure.

It is necessary to open a valve carefully, but without any limitation in the closure of the valve.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

causing air to enter the pump, presence of pitting, noise and vibration, whirlpools and eddies around the suction inlet

Begin ballast operation with small capacity and at slow speed.

GUTIERREZ, DAN MARTIN C.

Attention should be paid to opening or closing the valve.

Make it negative pressure by opening a delivery valve of an empty tank

presence of pitting, noise and vibration, causing air to enter the pump, whirlpools and eddies around the suction inlet, as the tank liquid level of the ballast water ascent

Begin ballast operation with small capacity and at slow speed., Close valves slowly to avoid pressure surge., Pay attention to the difference in pressure on both ends of the valve.

MASTER/ CARBONILLA, LEO JR. C.

Attention should be paid to opening or closing the valve.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

whirlpools and eddies around the suction inlet

Begin ballast operation with small capacity and at slow speed.

3/0 GUMAPAL, JAMES ANGELO G.

Attention should be paid to opening or closing the valve.

Make it negative pressure by opening a delivery valve of an empty tank

presence of pitting, noise and vibration, whirlpools and eddies around the suction inlet

Begin ballast operation with small capacity and at slow speed., Pay attention to the difference in pressure on both ends of the valve.

CM / PATAL, ROMAN JR LONTOC

It is necessary to open a valve carefully, but without any limitation in the closure of the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

presence of pitting, noise and vibration

Close valves slowly to avoid pressure surge.

It is necessary to open a valve carefully, but without any limitation in the closure of the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet, presence of pitting, noise and vibration, causing air to enter the pump

Begin ballast operation with small capacity and at slow speed., Close valves slowly to avoid pressure surge.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

causing air to enter the pump

Begin ballast operation with small capacity and at slow speed.

C/O// ALISACA, RICHARD F.

It is necessary to open a valve carefully, but without any limitation in the closure of the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

causing air to enter the pump

Begin ballast operation with small capacity and at slow speed.

OIC-NW CADAVONA, NOE JR C.

Taking into account the sudden opening and closing of the valve to compensate for the vessel's delay.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

as the tank liquid level of the ballast water ascent

Fill the ballast line with freshwater and confirm positive pressure.

OIC DE GUIA , ALVIN JOHN DELA CRUZ

Attention should be paid to opening or closing the valve.

Immediately open the correct valve to finish the operation instantly

as the tank liquid level of the ballast water ascent, presence of pitting, noise and vibration, causing air to enter the pump

Begin ballast operation with small capacity and at slow speed., Pay attention to the difference in pressure on both ends of the valve., Close valves slowly to avoid pressure surge.

OIC-NW/ CABAN, JOMAR E.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

as the tank liquid level of the ballast water ascent, whirlpools and eddies around the suction inlet, causing air to enter the pump

Begin ballast operation with small capacity and at slow speed., Pay attention to the difference in pressure on both ends of the valve., Close valves slowly to avoid pressure surge.

Simultaneously fully opening and closing the valve so as not to be complicated.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

presence of pitting, noise and vibration

Close valves slowly to avoid pressure surge.

OIC-NW / LUMBO, JONARD G.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

causing air to enter the pump, presence of pitting, noise and vibration

Pay attention to the difference in pressure on both ends of the valve., Close valves slowly to avoid pressure surge.

It is necessary to open a valve carefully, but without any limitation in the closure of the valve.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

presence of pitting, noise and vibration, whirlpools and eddies around the suction inlet, causing air to enter the pump, as the tank liquid level of the ballast water ascent

Fill the ballast line with freshwater and confirm positive pressure., Pay attention to the difference in pressure on both ends of the valve., Begin ballast operation with small capacity and at slow speed., Close valves slowly to avoid pressure surge.

OIC-NW ASENTISTA, ERLEF B.

Pump head and discharge valve

Simultaneously fully opening and closing the valve so as not to be complicated.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

as the tank liquid level of the ballast water ascent

Pay attention to the difference in pressure on both ends of the valve.

ABAPO, CARLO SAMILLANO

It is necessary to open a valve carefully, but without any limitation in the closure of the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

presence of pitting, noise and vibration

Begin ballast operation with small capacity and at slow speed.

VELASQUEZ JAN KEVIN O.

Attention should be paid to opening or closing the valve.

Immediately open the correct valve to finish the operation instantly

causing air to enter the pump

Pay attention to the difference in pressure on both ends of the valve.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet, causing air to enter the pump, presence of pitting, noise and vibration

Pay attention to the difference in pressure on both ends of the valve.

TO / ELISAN, JOVEN MARIE S.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet, causing air to enter the pump, presence of pitting, noise and vibration

Begin ballast operation with small capacity and at slow speed., Fill the ballast line with freshwater and confirm positive pressure., Close valves slowly to avoid pressure surge., Pay attention to the difference in pressure on both ends of the valve.

MASTER / ALEGATA / ROCKY Y.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet

Pay attention to the difference in pressure on both ends of the valve.

T/O GUERRERO, KARL JOSEF O.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

presence of pitting, noise and vibration

Begin ballast operation with small capacity and at slow speed.

MASTER / VALENCE, GRACIANO JR. O

Attention should be paid to opening or closing the valve.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

presence of pitting, noise and vibration

Pay attention to the difference in pressure on both ends of the valve.

OIC - NW/ BAUTISTA, RUCKEE BRYE O.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

causing air to enter the pump, presence of pitting, noise and vibration

Close valves slowly to avoid pressure surge., Pay attention to the difference in pressure on both ends of the valve., Begin ballast operation with small capacity and at slow speed.

3OFF / DE LA CRUZ, SHERWIN G.

It is necessary to open a valve carefully, but without any limitation in the closure of the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet, presence of pitting, noise and vibration, causing air to enter the pump

Begin ballast operation with small capacity and at slow speed., Close valves slowly to avoid pressure surge., Pay attention to the difference in pressure on both ends of the valve.

MANGUBAT, ARCHIVAL O.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

presence of pitting, noise and vibration

Pay attention to the difference in pressure on both ends of the valve.

Attention should be paid to opening or closing the valve.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

whirlpools and eddies around the suction inlet, causing air to enter the pump, as the tank liquid level of the ballast water ascent, presence of pitting, noise and vibration

Close valves slowly to avoid pressure surge., Pay attention to the difference in pressure on both ends of the valve., Begin ballast operation with small capacity and at slow speed., Fill the ballast line with freshwater and confirm positive pressure.

2M BULADACO, FREDERICK D.

Pump head and discharge valve

Attention should be paid to opening or closing the valve.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

causing air to enter the pump, whirlpools and eddies around the suction inlet, as the tank liquid level of the ballast water ascent, presence of pitting, noise and vibration

Begin ballast operation with small capacity and at slow speed., Pay attention to the difference in pressure on both ends of the valve., Close valves slowly to avoid pressure surge.

CM/EUCOGCO,JURADON G.

Taking into account the sudden opening and closing of the valve to compensate for the vessel's delay.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet

Begin ballast operation with small capacity and at slow speed.

MASTER / LIBAO, FRENZ ALLEN P.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

causing air to enter the pump, presence of pitting, noise and vibration, whirlpools and eddies around the suction inlet

Pay attention to the difference in pressure on both ends of the valve., Close valves slowly to avoid pressure surge., Begin ballast operation with small capacity and at slow speed.

AB / DE GUZMAN, JAN JERWIN M.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

causing air to enter the pump, presence of pitting, noise and vibration

Close valves slowly to avoid pressure surge., Pay attention to the difference in pressure on both ends of the valve., Begin ballast operation with small capacity and at slow speed.

CAPT / LAZAGA, JERRICK B.

Attention should be paid to opening or closing the valve.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

causing air to enter the pump

Begin ballast operation with small capacity and at slow speed.

OIC / CARINO,ULYSSES HARO

Pump head and discharge valve

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

causing air to enter the pump

Pay attention to the difference in pressure on both ends of the valve.

3/O / Lignig, James Kenneth B.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

causing air to enter the pump, as the tank liquid level of the ballast water ascent, presence of pitting, noise and vibration

Begin ballast operation with small capacity and at slow speed., Close valves slowly to avoid pressure surge., Pay attention to the difference in pressure on both ends of the valve.

OIC/ MALLORCA, JULIO JR. L.

Attention should be paid to opening or closing the valve.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

whirlpools and eddies around the suction inlet

Begin ballast operation with small capacity and at slow speed.

OIC-NW/ ALINGASA, JOHN MARK M.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet

Pay attention to the difference in pressure on both ends of the valve., Begin ballast operation with small capacity and at slow speed.

cm / dador, christopher A.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet

Begin ballast operation with small capacity and at slow speed.

3/O / PIEZAS, RAUL DANIEL C.

It is necessary to open a valve carefully, but without any limitation in the closure of the valve.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

as the tank liquid level of the ballast water ascent

Begin ballast operation with small capacity and at slow speed.

OIC-NW SABATER, PAULO ANGELO A.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

causing air to enter the pump, whirlpools and eddies around the suction inlet, presence of pitting, noise and vibration

Fill the ballast line with freshwater and confirm positive pressure., Pay attention to the difference in pressure on both ends of the valve., Close valves slowly to avoid pressure surge., Begin ballast operation with small capacity and at slow speed.

OIC-NW/BUTASLAC, ROBBIE KARL M.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet

Close valves slowly to avoid pressure surge.

C/O/LEGARDE,BALTAZAR D.

Simultaneously fully opening and closing the valve so as not to be complicated.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet, causing air to enter the pump, presence of pitting, noise and vibration

Pay attention to the difference in pressure on both ends of the valve., Begin ballast operation with small capacity and at slow speed., Close valves slowly to avoid pressure surge.

OIC/NW / TANUECOZ,RANIEL M.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

presence of pitting, noise and vibration

Close valves slowly to avoid pressure surge., Begin ballast operation with small capacity and at slow speed., Pay attention to the difference in pressure on both ends of the valve.

3/O / VILLANUEVA, MARC N.

Attention should be paid to opening or closing the valve.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

causing air to enter the pump

Pay attention to the difference in pressure on both ends of the valve.

OIC-NW PETERO, CARL ANGELO J.

Attention should be paid to opening or closing the valve.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

as the tank liquid level of the ballast water ascent, causing air to enter the pump

Fill the ballast line with freshwater and confirm positive pressure., Begin ballast operation with small capacity and at slow speed.

OIC APULI JONEL VALENCIA

It is necessary to open a valve carefully, but without any limitation in the closure of the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet

Begin ballast operation with small capacity and at slow speed.

Taking into account the sudden opening and closing of the valve to compensate for the vessel's delay.

Immediately open the correct valve to finish the operation instantly

as the tank liquid level of the ballast water ascent

Begin ballast operation with small capacity and at slow speed.

OIC-NW / VERMUG, JEFF A.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

causing air to enter the pump, whirlpools and eddies around the suction inlet

Close valves slowly to avoid pressure surge., Begin ballast operation with small capacity and at slow speed., Pay attention to the difference in pressure on both ends of the valve.

JUNIOR OFFICER REYES, CARL ANDREW J.

Attention should be paid to opening or closing the valve.

Make it negative pressure by opening a delivery valve of an empty tank

whirlpools and eddies around the suction inlet, causing air to enter the pump, presence of pitting, noise and vibration

Begin ballast operation with small capacity and at slow speed., Pay attention to the difference in pressure on both ends of the valve., Fill the ballast line with freshwater and confirm positive pressure., Close valves slowly to avoid pressure surge.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

presence of pitting, noise and vibration, causing air to enter the pump

Fill the ballast line with freshwater and confirm positive pressure., Close valves slowly to avoid pressure surge., Pay attention to the difference in pressure on both ends of the valve., Begin ballast operation with small capacity and at slow speed.

OIC-NW RAÑULA, JUNEL B.

Taking into account the sudden opening and closing of the valve to compensate for the vessel's delay.

Immediately open the correct valve to finish the operation instantly

presence of pitting, noise and vibration

Begin ballast operation with small capacity and at slow speed.

MASTER / CUBITA, LEO GLENN A.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet

Begin ballast operation with small capacity and at slow speed.

Attention should be paid to opening or closing the valve.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

causing air to enter the pump, presence of pitting, noise and vibration

Begin ballast operation with small capacity and at slow speed.

MASTER, FLAMINIA, EVERETTE P.

Taking into account the sudden opening and closing of the valve to compensate for the vessel's delay.

Make it negative pressure by opening a delivery valve of an empty tank

as the tank liquid level of the ballast water ascent

Close valves slowly to avoid pressure surge.

0IC-NW/KALLOS,CLARK MARVIN C.

It is necessary to open a valve carefully, but without any limitation in the closure of the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet

Begin ballast operation with small capacity and at slow speed.

OIC/MONTEBON, MARK LINCOLN O.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet, causing air to enter the pump

Pay attention to the difference in pressure on both ends of the valve., Begin ballast operation with small capacity and at slow speed.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

causing air to enter the pump, whirlpools and eddies around the suction inlet

Pay attention to the difference in pressure on both ends of the valve., Begin ballast operation with small capacity and at slow speed.

OIC APULI JONEL VALENCIA

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet, as the tank liquid level of the ballast water ascent, presence of pitting, noise and vibration

Close valves slowly to avoid pressure surge., Begin ballast operation with small capacity and at slow speed.

APP. OFF./ BARDIES, JASHEM A.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet, presence of pitting, noise and vibration, causing air to enter the pump

Close valves slowly to avoid pressure surge., Fill the ballast line with freshwater and confirm positive pressure., Begin ballast operation with small capacity and at slow speed., Pay attention to the difference in pressure on both ends of the valve.

3/O CARREON, CRISOSTOMO C.

It is necessary to open a valve carefully, but without any limitation in the closure of the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet

Pay attention to the difference in pressure on both ends of the valve.

MSTR / BALAJADIA, RUBIGEN B.

Attention should be paid to opening or closing the valve.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

whirlpools and eddies around the suction inlet

Fill the ballast line with freshwater and confirm positive pressure.

C/OFF PEOLLO, JOHN HOLDEN G.

Attention should be paid to opening or closing the valve.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

presence of pitting, noise and vibration

Close valves slowly to avoid pressure surge.

MASTER/MAGSIPOC, RUBEN III C.

It is necessary to open a valve carefully, but without any limitation in the closure of the valve.

Immediately open the correct valve to finish the operation instantly

causing air to enter the pump

Close valves slowly to avoid pressure surge.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

presence of pitting, noise and vibration, whirlpools and eddies around the suction inlet

Begin ballast operation with small capacity and at slow speed., Pay attention to the difference in pressure on both ends of the valve.

OIC GAVINO, MANUEL GERARD V.

Attention should be paid to opening or closing the valve.

Make it negative pressure by opening a delivery valve of an empty tank

causing air to enter the pump, presence of pitting, noise and vibration, whirlpools and eddies around the suction inlet

Begin ballast operation with small capacity and at slow speed., Pay attention to the difference in pressure on both ends of the valve., Close valves slowly to avoid pressure surge.

OIC-NW GEPULLANO,JOE DENNIS C.

It is necessary to open a valve carefully, but without any limitation in the closure of the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

presence of pitting, noise and vibration, whirlpools and eddies around the suction inlet, causing air to enter the pump, as the tank liquid level of the ballast water ascent

Pay attention to the difference in pressure on both ends of the valve., Close valves slowly to avoid pressure surge.

3/O FUERTES, PHILIP JOHN C.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

presence of pitting, noise and vibration, causing air to enter the pump, as the tank liquid level of the ballast water ascent

Close valves slowly to avoid pressure surge., Pay attention to the difference in pressure on both ends of the valve., Begin ballast operation with small capacity and at slow speed.

CAPT. RAMON B. REMALDORA JR.

Attention should be paid to opening or closing the valve.

Make it negative pressure by opening a delivery valve of an empty tank

presence of pitting, noise and vibration, as the tank liquid level of the ballast water ascent, causing air to enter the pump

Begin ballast operation with small capacity and at slow speed., Close valves slowly to avoid pressure surge., Pay attention to the difference in pressure on both ends of the valve.

OIC-NW BELARMINO, RHYAN KLYDE B

Attention should be paid to opening or closing the valve.

Make it negative pressure by opening a delivery valve of an empty tank

whirlpools and eddies around the suction inlet, presence of pitting, noise and vibration

Pay attention to the difference in pressure on both ends of the valve., Close valves slowly to avoid pressure surge.

OIC-NW Vergonia, Bryle Lawrence D.

Attention should be paid to opening or closing the valve.

Make it negative pressure by opening a delivery valve of an empty tank

whirlpools and eddies around the suction inlet, presence of pitting, noise and vibration

Begin ballast operation with small capacity and at slow speed., Pay attention to the difference in pressure on both ends of the valve.

3/O NIANGO, MARK ANGELO A.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

presence of pitting, noise and vibration, as the tank liquid level of the ballast water ascent, whirlpools and eddies around the suction inlet, causing air to enter the pump

Begin ballast operation with small capacity and at slow speed., Fill the ballast line with freshwater and confirm positive pressure., Pay attention to the difference in pressure on both ends of the valve., Close valves slowly to avoid pressure surge.

C/OFF Manso, Jose Ben Glicerio B.

Pump head and discharge valve

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

presence of pitting, noise and vibration

Begin ballast operation with small capacity and at slow speed.

OIC/ GALLANO PATRICK C

Attention should be paid to opening or closing the valve.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

causing air to enter the pump

Pay attention to the difference in pressure on both ends of the valve., Begin ballast operation with small capacity and at slow speed.

Chief Officer Garcines, Leodel B.

Attention should be paid to opening or closing the valve.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

presence of pitting, noise and vibration, causing air to enter the pump

Begin ballast operation with small capacity and at slow speed., Pay attention to the difference in pressure on both ends of the valve., Close valves slowly to avoid pressure surge.

OIC / RABAYA, NEIL JOHN B.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

causing air to enter the pump

Begin ballast operation with small capacity and at slow speed.

OIC / Tagailo, Brent Dariel E.

It is necessary to open a valve carefully, but without any limitation in the closure of the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

presence of pitting, noise and vibration, whirlpools and eddies around the suction inlet

Begin ballast operation with small capacity and at slow speed., Close valves slowly to avoid pressure surge., Pay attention to the difference in pressure on both ends of the valve.

3/O / Timog, Christopher D.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

presence of pitting, noise and vibration, whirlpools and eddies around the suction inlet, causing air to enter the pump

Pay attention to the difference in pressure on both ends of the valve., Begin ballast operation with small capacity and at slow speed., Close valves slowly to avoid pressure surge.

OIC AMBA, JON VON STEPH A.

Attention should be paid to opening or closing the valve.

Make it negative pressure by opening a delivery valve of an empty tank

presence of pitting, noise and vibration, whirlpools and eddies around the suction inlet

Pay attention to the difference in pressure on both ends of the valve., Begin ballast operation with small capacity and at slow speed., Close valves slowly to avoid pressure surge.

OIC-NW ADAME, NIÑO JOSEPH L.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet, presence of pitting, noise and vibration, as the tank liquid level of the ballast water ascent, causing air to enter the pump

Close valves slowly to avoid pressure surge., Fill the ballast line with freshwater and confirm positive pressure., Begin ballast operation with small capacity and at slow speed., Pay attention to the difference in pressure on both ends of the valve.

MASTER/ FARILLON, RANDY N.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

causing air to enter the pump, presence of pitting, noise and vibration, whirlpools and eddies around the suction inlet

Pay attention to the difference in pressure on both ends of the valve., Close valves slowly to avoid pressure surge., Begin ballast operation with small capacity and at slow speed.

MASTER/ Baylas, Ronaldo B.

Attention should be paid to opening or closing the valve.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

whirlpools and eddies around the suction inlet

Close valves slowly to avoid pressure surge.

OIC/NW/ Atibagos, Mark Louie D.

It is necessary to open a valve carefully, but without any limitation in the closure of the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

presence of pitting, noise and vibration

Close valves slowly to avoid pressure surge.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

causing air to enter the pump, presence of pitting, noise and vibration, whirlpools and eddies around the suction inlet

Pay attention to the difference in pressure on both ends of the valve., Close valves slowly to avoid pressure surge., Begin ballast operation with small capacity and at slow speed.

GUTIERREZ, LINDON JAY P.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet, causing air to enter the pump, presence of pitting, noise and vibration

Begin ballast operation with small capacity and at slow speed., Pay attention to the difference in pressure on both ends of the valve., Close valves slowly to avoid pressure surge.

Attention should be paid to opening or closing the valve.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

presence of pitting, noise and vibration

Pay attention to the difference in pressure on both ends of the valve.

OIC-NW/ ALICAME, HOMER A.

Pump head and discharge valve

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

presence of pitting, noise and vibration

Begin ballast operation with small capacity and at slow speed.

OIC/JARANILLA, JOHN DALE L.

Attention should be paid to opening or closing the valve.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

whirlpools and eddies around the suction inlet, as the tank liquid level of the ballast water ascent, causing air to enter the pump, presence of pitting, noise and vibration

Pay attention to the difference in pressure on both ends of the valve., Begin ballast operation with small capacity and at slow speed., Close valves slowly to avoid pressure surge., Fill the ballast line with freshwater and confirm positive pressure.

Attention should be paid to opening or closing the valve.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

presence of pitting, noise and vibration, whirlpools and eddies around the suction inlet

Begin ballast operation with small capacity and at slow speed., Close valves slowly to avoid pressure surge., Pay attention to the difference in pressure on both ends of the valve., Fill the ballast line with freshwater and confirm positive pressure.

AB / BAWIC, KEVIN JOHN C.

Attention should be paid to opening or closing the valve.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

as the tank liquid level of the ballast water ascent

Pay attention to the difference in pressure on both ends of the valve.

OIC-NW / Gargoles, Kurtken A.

Taking into account the sudden opening and closing of the valve to compensate for the vessel's delay.

Make it positive pressure by slowly opening a suction valve of an empty tank

as the tank liquid level of the ballast water ascent, causing air to enter the pump, whirlpools and eddies around the suction inlet, presence of pitting, noise and vibration

Pay attention to the difference in pressure on both ends of the valve., Close valves slowly to avoid pressure surge., Begin ballast operation with small capacity and at slow speed., Fill the ballast line with freshwater and confirm positive pressure.

LANZADERAS, ROMMEL L.

Pump head and discharge valve

It is necessary to open a valve carefully, but without any limitation in the closure of the valve.

Carefully choose a full ballast tank to eliminate the vacuum by filling the pipeline

presence of pitting, noise and vibration

Fill the ballast line with freshwater and confirm positive pressure.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet

Pay attention to the difference in pressure on both ends of the valve.

3O/ ASILUM CHARLES LOUISE T.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet, as the tank liquid level of the ballast water ascent

Pay attention to the difference in pressure on both ends of the valve., Begin ballast operation with small capacity and at slow speed.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

whirlpools and eddies around the suction inlet, causing air to enter the pump, presence of pitting, noise and vibration

Pay attention to the difference in pressure on both ends of the valve.

Attention should be paid to opening or closing the valve.

Make it positive pressure by slowly opening a suction valve of an empty tank

causing air to enter the pump

Pay attention to the difference in pressure on both ends of the valve.