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john hill 
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 Topic: dehumidifier water ?
Posted: May 01 2009 at 9:54pm |
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my sump is in my basment and i was thinking could i drain the water that my dehumiddfier makes back into my sump or is this a bad idea i just thought it would help with my ro water out put
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out with the large and in with the nano
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BobC63
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Posted: May 01 2009 at 9:59pm |
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Can you check the TDS level of the water from the dehumidifier?
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- My Current Tank: 65g Starfire (sitting empty for 2+ years) -
* Marine & Reef tanks since 1977 *
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john hill
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Posted: May 01 2009 at 10:30pm |
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do you think that the copper pipe that the water collects on befor it drips into the cup would be bad
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out with the large and in with the nano
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BobC63
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Posted: May 01 2009 at 10:32pm |
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That's what I was wondering about... if the piping was copper (or aluminum, maybe?) and whether or not any residual amounts get into the water...
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- My Current Tank: 65g Starfire (sitting empty for 2+ years) -
* Marine & Reef tanks since 1977 *
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Shane H
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Posted: May 02 2009 at 10:14am |
Would you drink the water out of the collection tub? If the answer is no - then send it down the drain (or on the front lawn).
Check to see if the condensation pipes are copper. If copper, then I'd say absolutely not. If they are anything else - then maybe ....
Let us know what you decide. A lot of us have dehumidifiers.
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Mike Savage
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Posted: May 02 2009 at 10:23am |
Our cold water plumbing is copper. I haven't seen any problems.
Mike
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john hill
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Posted: May 02 2009 at 11:18am |
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i dont think it would hurt you to drink it kind of like collecting rain water
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out with the large and in with the nano
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Shane H
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Posted: May 02 2009 at 11:59am |
I don't think the copper itself is a problem, its the fact that the condensation area is exposed to the atmosphere. I took mine apart to clean and some of the pipes were coated in patina. This patina was leaching into the collection tub. The water within your pipes is not exposed to the air, therefore - no patina.
Now - is the copper patina detrimental to your corals? Is there enough getting into the water to even worry about?
I say if you would drink it, then dump it in your sump and have your own little water cycle!
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Mike Savage
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Posted: May 02 2009 at 12:22pm |
Good point Shane. The oxidation may be detrimental.
Mike
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cl2ysta1
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Posted: May 02 2009 at 12:32pm |
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i know a lot of people who keep discus use dehumidifier water for their tanks... and they are extremely sensitive fish
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I <3 Boxers
Achilles tang lover
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jpiotrowski
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Posted: May 02 2009 at 2:05pm |
I would think that the amount of 'contaminants' in such a water source would be miniscule considering the volume. If tubing on the unit looks bad than it would be wise not to use it considering the possibility of flaking. Overall there are probably more 'contaminants' in our tap water.
I collected run-off water this year and am using it in water changes and top-off.
You may consider 50:50 ratio of collected water and RO.
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sanddune600
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Posted: May 02 2009 at 3:04pm |
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is everything in your tank really worth the water from your dehumidifier
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Andy Jorgensen
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Shane H
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Posted: May 02 2009 at 4:11pm |
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As a compromise, you could dump the dehumidifier water in the toilet tank and use RO water for your fish tank. You'd still be saving the otherwise wasted water and be adding the "safest" water to your tank for top off.
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Jake Pehrson
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Posted: May 03 2009 at 3:58pm |
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I have always drained my water back into my tanks. I have never seen side effects, although I do have a large amount of water so that my dilute any "bad stuff". I don't think it is a problem, but if you want to be safe then do as Shane suggested.
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john hill
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Posted: May 03 2009 at 8:54pm |
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i just tested the water and it has 000 tds now i need to check for copper
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out with the large and in with the nano
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JWayment
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Posted: May 04 2009 at 9:53am |
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If the dehumidifier is using copper pipes and they are changing color then you are leaching copper into the water. In other words the copper is being converted from metal copper to a charged form that is then completely or partially soluble in water (depending on the form it takes). Now this might be at an unmeasurable level and it might not harm any inhabitants, but over the years build up in a closed tank even with water changes may be a problem because copper is very good at binding to calcium carbonate.
Personally I like Shane's idea use dehumidifier water in the toilet tank and then use RO in the reef.
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Josh
120 gal reef
55 gal predator
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