What to do with RODI waste???

[Gaffer]

Originally Posted by gobytron

1 word...

Bong.

Of course, from the guy in Vancouver.

I figure made about 100gallons of waste this weekend, that is a damn big bong.

a

[Milad]

wow you guys must have some crappy water. My waste is like zero, it would take 30days of non stop water to fill my 180g

or... i may have something hooked up wrong! LOL

[Gaffer]

Originally Posted by Milad

wow you guys must have some crappy water. My waste is like zero, it would take 30days of non stop water to fill my 180g

or... i may have something hooked up wrong! LOL

My RODI has a rejection rate of 3:1 so there is 3L of waste for every 1L of RODI.

I would like to buy another pressure tank and send the waste to that and then hook it up to the supply line of the toilets of my house. It may take longer to fill up the toilet, but would be an elegant way to use the waste.

Andrew

[kien]

There is a system out there that will allow you to run your waste line into the feed line of your hot water tank.

I've always thought that there was a pretty big rejection rate for RO/DI so if you're not getting very much waste water out of your RO/DI I would investigate :-)

[mike31154]

Originally Posted by mseepman

How do you use it for toilets

Ha, ha, didn't want to get into too much detail, but basically it's 'bucket brigade'. Certainly not for everyone, haul the bucket upstairs & dump the bucket into the toilet to flush after you do your thing.

Gaffer actually has hit the nail on the head. These days our homes should be fitted with a grey water system that reuses things like dishwater, RODI waste, old saltwater etc. in a separate pressurized system to service the toilets. It's a total waste to use fresh drinking water to flush. Especially here in the North Okanagan where we're dealing with Stage 2 water restrictions.

[Doug]

Yep. My wife makes my ro water and uses most all waste for her washing machine.

Thats funny about bucketing to the toilet. Its how we flushed our basement toilet at my grandparents house.

[mark]

realize there more to being green than saving money, but at a dollar something for cubic meter (plus sewer cost as based on water in) my waste just goes down the drain.

Had thought about sending to the rain barrel for summer but since it's stays pretty full just with the rain, effectively I'd just be dumping the waste anyways.

Related question though, how for can you run the 1/4" OD waste water line without causing back pressure problems to the ro unit?

[littlesilvermax]

Originally Posted by mark

realize there more to being green than saving money, but at a dollar something for cubic meter (plus sewer cost as based on water in) my waste just goes down the drain.

Had thought about sending to the rain barrel for summer but since it's stays pretty full just with the rain, effectively I'd just be dumping the waste anyways.

Related question though, how for can you run the 1/4" OD waste water line without causing back pressure problems to the ro unit?

Back pressure really shouldn't be a problem, as there is a restrictor on the waste line anyways.

If you were concerned about it, then run 3/8 hose vs 1/4.

[whatcaneyedo]

One of these systems will pump the waste water into your hot water tank. http://bwiplumbing.com/index.php/aqu...retro-kit.html

[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