Using dehumidifier water to water. Ok?

Cookie Rider

Well-Known Member
I've been using my dehumidifier water to water my girls. Usually I have to add to it to get enough for a proper watering. I use the ph drops and it's 6-6.6 every time.
Anyone else do the same?
Is this a bad idea, possibly recycling possible contamination of sorts?
 

Cookie Rider

Well-Known Member
Really helps you see the transpiration rate. I've been playing around w the Rh to get them to drink more or less at times.
 

Chip Green

Well-Known Member
Is this a bad idea, possibly recycling possible contamination of sorts?
I think there is a theoretical risk here, but I've never seen any negative effect of using it.

I have thoroughly cleaned a couple of older, second hand units before use, and there was some pretty discolored runoff.
 

fragileassassin

Well-Known Member
Dehumidifiers are packed full of bacteria and micro-organisms. Everything that was in the air ends up inside it and its a warm, wet, and dark place which is a perfect breeding ground for all kinds of stuff you dont want in your system. The water comes out pretty clean but is immediately contaminated by the dirty machine. It is widely considered unsafe for any human use and as such I would never put it in my res personally.
If you must, I would run it through a UV filter at a minimum.
 

Cookie Rider

Well-Known Member
That's what I was thinking as well.
I do add h202 and rinse out the res on the dehumidifier and my water res before refilling.
Thanks for the feedback!
 

Chip Green

Well-Known Member
I only ever used it in soil, and it's not a common occurrence. I've poured it into a larger pot a few times.

I've seen the coils harbor fungus gnats for sure.
 

Cookie Rider

Well-Known Member
I too am in soil. I should take it apart and blow out the inside each go.
It's still pretty mint.
Only on my 4th go roughly lol.
But I have had my share of gnats, spider mites, & thrips.
All seem to come out just after the flip‍♂
 

fragileassassin

Well-Known Member
That's what I was thinking as well.
I do add h202 and rinse out the res on the dehumidifier and my water res before refilling.
Thanks for the feedback!
If youre taking steps to clean it regularly, youd probably be fine but were talking getting inside it making sure nothings growing in there cleaning at least several times a year. Peroxide in the collection bucket is a step but its not going to help up inside the machine. Unless you are saying you are sterilizing the water with peroxide after collection.
I have to change the wicks on my humidifier and sterilize that holding tank for the same reason. It grows some funky stuff.
Ive never had to use a dehu in a grow, but I spent a lot of time living in the south and have had plenty of them over the years. They get gross up inside there pretty quickly.
 

Cookie Rider

Well-Known Member
Right on, your lucky.
I'm one of those new kids growing in a tent. So a dehumidifier is part of it.
It's removing 30 pints a day roughly.
on the wet west coast, in a natural rain forest, camping ⛺ in the basement.lol
98% humidity the other day outside.
 

fragileassassin

Well-Known Member
Right on, your lucky.
I'm one of those new kids growing in a tent. So a dehumidifier is part of it.
It's removing 30 pints a day roughly.
on the wet west coast, in a natural rain forest, camping ⛺ in the basement.lol
98% humidity the other day outside.
ive lived in that so i totally understand what its like. I have the opposite problem of having to battle up from 20-30% over most of the winter.
 
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