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Rain Catchment System

Page history last edited by Stophe 12 years, 11 months ago

FrontPage >Technologies > Rain Catchment

 

 

The rain catchment system was originally designed to be the sole source of water for Mirthwood.  I developed the roofing dimensions based on recorded lows of rainfall for the area going back to 1920. Based on lows for each month (the lowest rainfall for January was 6" in 1938, lowest for February was 4" in 1945, etc) I made an estimate for the area required to provide 100 gallons per person per day.  Our main roof area is still based on that estimate.  I then purchased Norwesco in ground drinking water cisterns (pictured on the right).

The two 1400 gallon cisterns are in ground and connected via CPVC pipe.  They are plumbed into the house.

 

I had to stop at the end of 2007 for the winter.  When I returned in 2008 I wanted to begin plumbing the cisterns and gutters so I would have water for plastering and mixing concrete.  The oversight of source residential water had been transfered to a new department, and they would not accept rain catchment systems.  I appealed to the state level for a waiver (since I had originally gotten permission when I started building).  I was denied, and we had to put in a well.

 

Later I learned that source residential water is now overseen independantly at each code enforcement level, and I could be approved for my rain catchment system.  Some day we may switch over, but for now we are working with the well.

 

In this area there is plenty of water, with annual averages around 48".  So there is less pressure here for non ground water sources.  In other areas, such as those with high levels of ground contamination, or low rainfall, this would be a far more critical part of the design.

 

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