RWH saving calculator
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ABCDEFGH
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RAINWATER HAREVSTING SAVINGS CALCULATOR - DURBAN
2
Rainwater Roof recovery surface
0
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Monthly Municpal water use in Kl
630
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Rainharvesting recovery factor95%
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Long term average mean rainfall Durban
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MonthMean rainfall (mm)95% water recovery - (Kl)Water use withhout RWH - (Kl)Municpal water use with RWH -(Kl)Water bill without RWH - (R) Water bill with RWH - (R) Savings (R)
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January1240630630#N/A#N/A#N/A
9
February1420630630#N/A#N/A#N/A
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March1130630630#N/A#N/A#N/A
11
April980630630#N/A#N/A#N/A
12
May350630630#N/A#N/A#N/A
13
June340630630#N/A#N/A#N/A
14
July480630630#N/A#N/A#N/A
15
August350630630#N/A#N/A#N/A
16
September650630630#N/A#N/A#N/A
17
October1070630630#N/A#N/A#N/A
18
November1210630630#N/A#N/A#N/A
19
December1180630630#N/A#N/A#N/A
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21
Annual totals1040075607560#N/A#N/A#N/A
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RWH Savings calculator
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Sewage tarrif
Water Tariff
Total Water and Sewer charge
 
 
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