02-24-2009, 06:31 AM
I was also wondering about the need for or benefit of grey water re-use in most areas of Puna. Normally there is actually too much rain on your lawn and garden, so much so that it washes away your fertilizer and nutrients. Re-using gray water for flushing toilets is the only benefit I can see under these circumstances. There are occasional water shortages for those on catchment. If you put the extra money into larger catchment systems to tide you through the dry spells you would probably come out just as well.
It all boils down to what water use you would displace with gray water. Usually this is irrigation water. There isn't a big need for irrigation water when you get more than 10 feet of rain a year.
It all boils down to what water use you would displace with gray water. Usually this is irrigation water. There isn't a big need for irrigation water when you get more than 10 feet of rain a year.