RO/DI Tip for colder winter household water

[llorence]

With winter here, our household water temperature has dropped pretty significantly from summer temperatures. I've also noticed a fairly significant drop in my RO/DI output as a result. So, today, I spent $4 and added abut 40 feet of of supply line tubing between my water source and my RO/DI unit. I then coiled the tubing and placed in my sump (78 degrees). The result . . . raised the temperature of the water going to my RO/DI unit by about 15 degrees and increased my output by about 25%.

[younglcy]

Good tip. Thanks.

[Pmolan]

Thats pretty smart.

[usmc121581]

Ive used the salt bucket and heater but never thought about the sump.

[rbursek]

I did that a year ago and I found that it dropped my tank temp from what I normally run it at, even thou I have 2 300 watt heaters in it. Good luck!
Bob

[bstone]

I just simply mixed my cold and hot water supply from the house. Just used a 3-way and some valves on the 1/4" tubbing. Very easy and it works great!

Here is a

LINK

[gary faulkner]

Originally posted by bstone
I just simply mixed my cold and hot water supply from the house. Just used a 3-way and some valves on the 1/4" tubbing. Very easy and it works great!

Here is a

LINK

I think that most of the RODI manufactures will tell you not to do this.

Coil in the sump works well for me. I have been doing this for the past two years and it works great. I do have lots of heaters though. About 1000 watts total I think.

[jschottenfeld]

I understand that running the supply line through the sump could have many positive effects...higher output of water the is closer to tank temp, and last but not least...a way to possible lower your displaly tank temp by a degree or two.

I don't understand why most mfgs would tell you not to mix hot and cold water from the faucets? I could see if you don't want to hot water heater production but I thought it would help flow faster through your RODI in the winter.