RWH saving calculator
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RAINWATER HAREVSTING SAVINGS CALCULATOR - DURBAN
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Rainwater Roof recovery surface
200
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Monthly Municpal water use in Kl
37500
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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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January12423.563750037476#N/A#N/A#N/A
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February14226.983750037473#N/A#N/A#N/A
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March11321.473750037479#N/A#N/A#N/A
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April9818.623750037481#N/A#N/A#N/A
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May356.653750037493#N/A#N/A#N/A
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June346.463750037494#N/A#N/A#N/A
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July489.123750037491#N/A#N/A#N/A
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August356.653750037493#N/A#N/A#N/A
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September6512.353750037488#N/A#N/A#N/A
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October10720.333750037480#N/A#N/A#N/A
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November12122.993750037477#N/A#N/A#N/A
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December11822.423750037478#N/A#N/A#N/A
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Annual totals1040197.6450000449803#N/A#N/A#N/A
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