Here in Portland a couple put in a rainwater system and
it was described in the newspaper today. What surprised
me was the comment that this is the only know system in
the area. Here is a summary.
Total cost $1500 (less than a well?)
cistern size 1500 gallons
water collected off roof.
includes filters, pumps and pressure tank
This system easily provided all water for the winter
but the summer period was not discussed. I
assume one month without rain would drain the tank.
The possible use of composting toilets and other conservation
techniques might extend the system a few more months.
The tank was outside in zone 8 (too large to freeze?). The
size and weight of the tank makes it difficult to include in
a existing house but that would open up lots of heating and
cooling possibilities. Some day...
jeff
