Off the wall question...

[jgvergo]

Has anyone used water from a dehumidifier as the basis for your saltwater mix? It seems to me that it might be very low in dissolved solids and other contaminants. I have a TDS meter on my RO unit, but there is no easy way to measure the TDS of my humidifier output.

I ask because my dehumidifier produces 5 gallons of water a day and I'm constantly running my RO/DI to replace the evaporated water. It seems very wasteful.

 

[143MPCo]

Most condenser coils on standard home use dehumidifier are copper or aluminum, that might be a major "no-go" as it has a chance to leach copper into the condensed water. A quick copper test might be able to give you a solid answer.

 

[Waters]

As stated above, not only do you have to worry about the copper, but you also have to worry about anything that the dehumidifier pulled out of the air.

 

[Kungpaoshizi]

I've thought about this before when I had a much larger tank. The easiest thing I could come up with was a container that's up on a shelf, above a lower container. Fill the upper container, it has a bulkhead and hose, that connects to a di resin canister, then leads into the lower container. Not sure if 0 tds would count for aluminum, I believe it registers for copper.. Otherwise you would probably want to maybe do a triton test on the water produced. But it might defeat the purpose of saving money as then it's a competition against di resin vs di water. Might get away with using a metal adsorption media instead..