Just checked my water hardness for the first time

[brenmurph]

Just go round to Dempsey's and get some RO. Saves on water charges too

RO owners. Just in case ye dont know it. As far as i understand the RO water that gets 'wasted' down the drain is water that has gone through 3 x 5 micron filters its nearly as good as RO and should be saved in containers as it would be perfect for brewing / sparging or drinking as treated water. Or passing on to other brewers who have crap water full or chlorine and lime.
This RO 'waste' water is probably chlorine and bacteria free as it has passed  numerous filters as well as carbon block filter. I will be saving it in 5 gallon drums that Im modifing with and overflow that goes to the drain, that way I always have 5 gallong on hand, also it allows an indication of how much is being used for back flushing the RO filter which normally then ends up down the drain.

Anyone any more to add to this idea