Dehumidifier water, ok to use?

manowar669

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Sep 11, 2004
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I need to get a dehumidifier for the basement because of a slight mold problem. I was wondering if the water from the dehumidifier could be used as top off water, since it is distilled water.
 
Don't dehumidifiers use copper coils? That would be bad if you have inverts.

I don't think that water is good for human consumption (due to all the dust, spores, etc.) in the air and therefore in the water so I wouldn't use it in an aquarium which generally needs higher quality water than what humans consume.
 
I wouldn't use it at all for a saltwater tank. It comes in contact with plenty of metal before making its way into the plastic reservoir / pan. That's too risky, IMO, if there's to be any kind of invertebrates in the tank (even copepods; not just shrimp, crabs, clams, snails, etc.).
 
No its not safe. It turns all chemicals into a liquid form.

What??? What chemicals. Water vapor in the air condenses on cold aluminum coils, then drips into a plastic bucket. The same way water forms on the outside of a cold beverage can, then runs down the sides. I guess the aluminum coils would oxidize over time and aluminum oxide could be in the water, that's about it. If the bucket isn't covered, then whatever mold spores or dust is in the air could settle in the bucket, the same way it would settle on an uncovered fish tank.
 
Basically you're right manowar669. Al and plastic shouldn't be a problem. What is the problem is that the condensed water sitting on all the fins with a ton of unfiltered air blasting past it - an excellent air filter. Hence the water is going to be dirty. Distilled! But dirty. Legionella here we come. LOL
 
I agree with what everyone else is saying. First off it comes off of metal coils which can have toxic reactions in salt water. Secondly there is the possibility of it containing contaminate from the air which will cause issues in your aquarium.
 
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