thanks vince, i saw the post where someone said that they use 1/4 of a bucket of water per house....that's what got me thinking. I currently use an ionics set up, i have changed my jets from 4mm to 2mm (pencil jets) and was considering changing to microbore hose to conserve more water.
I have a 300L tank and can manage about 12-14 new 3 bed semi/detached upvc houses top and bottom with the flow on all the time. I'm running out of water at this point!
I could easily fit in another 6-10 houses in a day if i had a bigger capacity..... i was considering a holding tank in the garage and then coming home to refill my tank halfway through the day!
it would mean a lot of messing about, turning the flow off to scrub could be the answer I'm looking for........ I use an inline tap to control the flow.
yes in hindsight i should have got a 650L setup!!!