



 
First Response: If it is true that you have a flow rate of 50 gpm, it is possible to use more than 660000 gallons of water in 30 days. Since 30 days = 720 hours = 43200 minutes 50 gpm x 43200 minutes = 2160000 gallons You are right to question how much water can pass through a 1.5 inch pipe in 30 days. I did some research about flow rate and as far as I can tell 10 gpm is reasonable for a home. This would mean 10 gpm x 43200 minutes = 432000 gallons So even if you were running your water for the entire 30 days, it would not even be possible to use that much water. I definitely would be asking some questions to local officials, plumbers or someone who would be more qualified to evaluate your situation. Hope this helps, Janice
Second Response: You are right that flow depends on pressure and width of pipe; it also depends on how long a run of that pipe you are dealing with. That last you possibly do not know. * Can you put that much water through your taps? See how long it takes to fill a gallon jug at each tap, when all the other taps are turned on. Divide 1 by each of those numbers to get gallons per minute for each tap [eg, three minutes > 0.33 gal/min.) If those add to significantly under sixteen, you cannot be using this much water inside.  


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