Would you try this water?

[steveb87]

Hi All, I have been using a dehumidifier and have 20l of water. The reading are Ph6.6 Gh less than 20mg/pl Kh less than 10 mg/pl both 1 drop of test solution (not got a new TDS meter yet) Do you think this is safe to use after re mineralizing for soft water fish?

 

[Essjay]

I once looked at using dehumidifier water in my steam iron. When I saw the bits of dust floating in the water, I didn't bother. I know the filters have improved over the years but I'd take a good look at the clarity of the water before considering using it.

In theory, water from a dehumidifier is the same as distilled water - it's water vapour which has been condensed, it's just missing the evaporation stage. So there should be zero GH and KH and a pH of 7.0. Since you have non-zero GH and KH, albeit very low levels, and pH below 7, I would wonder what is in the water. Air borne contamination (eg the dust in mine)?

 

[BigBen1989]

Any aerosols used in the house will have contaminated the water. I wouldn't use it.

 

[GaryE]

I've done it, after confirming my dehumidifier was too cheap to have copper in it. It worked well, and I was able to breed a few species cutting my regular tap with it. There is a risk, but this fool got away with it!

I got neutral water with no tds from it.

 

[steveb87]

I once looked at using dehumidifier water in my steam iron. When I saw the bits of dust floating in the water, I didn't bother. I know the filters have improved over the years but I'd take a good look at the clarity of the water before considering using it.

In theory, water from a dehumidifier is the same as distilled water - it's water vapour which has been condensed, it's just missing the evaporation stage. So there should be zero GH and KH and a pH of 7.0. Since you have non-zero GH and KH, albeit very low levels, and pH below 7, I would wonder what is in the water. Air borne contamination (eg the dust in mine)?

Thanks as I said my TDS meter has gone west and need a new one. The Kh/Gh was 1 drop to change colour so could be 0. The water is clear and we do not use aerosols . I did 2 Ph tests and 1 was 6.6 and the other was 7 so not sure. I am using it in the iron but at the moment do not have my RO system working and thought I could run a small tank with it. Thanks for your replys.

 

[Archerfish]

Mine says don't drink or use the water drained from the dehumidifier. It probably says that to cover them in case someone drinks the water and dies. I drain my water into the garden.