What to do with RODI waste???

[mike31154]

Originally Posted by Gaffer

I may also look into the hotwater option too.

Andrew

Not sure about this, but the hot water option may only function properly if your system uses a conventional hot water tank. You mention a green home, so I suspect you may have a 'tankless' or on demand hot water heater? If so, I'd research that a little more before purchasing the 'hot water option'. Besides, that involves another bit of additional plumbing and possibly another booster pump, pressure switch, etc.

[jzz30tt]

Additionally you may want to consider the implications of running high mineral content water into a tankless water heater given the scaling issues. Same scaling would occur in a hot water tank but there is a larger margin for scale buildup before it becomes a problem in a hot water tank.

[Gaffer]

Sadly, I dont have a tankless system. They were too far along into the building process to put one in. I dont understand why they didnt put one in to begin with.

Now I am wondering if the higly mineralized RODI waste may be bad for the hotwater tank. Also, I prefer soft water for showering etc., so adding harder water may not be to my liking.

Flushing toilets on the other hand, I dont really care what the water is as long as it gets the job done.

Hmmmm...

Andrew

[jzz30tt]

Tis exactly the point i was trying to convey. The issues with the high mineral content water is that the mineral scales in the hot water tank creating an insulating layer. Raises the cost to heat a tank of water along with shortening the life of the hot water tank due to the additional heating required throughout of it's lifespan. Toilets however don't suffer from the same issues making them perfect!!

[Gaffer]

Originally Posted by jzz30tt

Tis exactly the point i was trying to convey. The issues with the high mineral content water is that the mineral scales in the hot water tank creating an insulating layer. Raises the cost to heat a tank of water along with shortening the life of the hot water tank due to the additional heating required throughout of it's lifespan. Toilets however don't suffer from the same issues making them perfect!!

Yes, I dont know what Edmonton water is like, but Calgary's is very hard making scale a problem.

I went out of my way to rum RO water to my furnace humidifiers to avoid scale problems, it does not make much sense to dump it into my hot water tank.

I am going to run it outside to mix it wil stored rain water and the drip irrigate with it. That shoudl give me the summer to come up with a system to use it on the toilets.

Andrew