What to do with RODI waste???

[mike31154]

Originally Posted by jzz30tt

Waste water runs into a 70+ Gallon Retention tank. Shur-flo pump to a small pressure tank plumbed as an expansion tank tee'd into the supply for the main toilet in the house. Valves on both feeds to isolate the toilet from either the house supply or the RO waste supply when the other is in use. Also plumb a high level overflow to the drain in the case of the waste water filling the retention tank. Can also be used to run other things but the more usage needed the bigger pump and therefore more expense in supplying the water for those uses from the retention tank.

Scott

Welcome to the forum. That's a pretty slick solution you've summarized. Any more specifics on the parts required? Would the 'expansion tank' be able to overcome the head pressure from basement to floor above? This sounds quite doable for the average DIYer.