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Old 02-27-2013, 01:10 AM   #1
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What is an acceptable way to fasten this drain pipe?


I want to add a drain pipe for my humidifier with a ball valve so I can manually drain it once in a while to clean it up, I'll be using 3/4 copper. What is the best way to fasten the pipe, can I just use self taping screws right into the furnace chassis? (lower, blower compartment section) Seems kind of dirty to do that though... Another option, can I build a small wall there, like maybe a foot high, and fasten it to that? It needs to be secure enough so I can turn the valve without the whole thing wanting to move.
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Old 02-27-2013, 04:38 AM   #2
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What is an acceptable way to fasten this drain pipe?


Yep, clamps and screws.

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Old 02-27-2013, 08:59 AM   #3
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What is an acceptable way to fasten this drain pipe?


Why dont you just hammer drill a new drain hole through the basement floor straight down, and drain it there? As long as your floor is poured over clean stone the water will perc down with no problem. I have my condensate lines from my HE furnace run like this and have not had problem one. I just pour a little bleach down there from time to time.
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Old 02-27-2013, 09:45 AM   #4
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What is an acceptable way to fasten this drain pipe?


I'd be pretty hesitant to drain water under my foundation, especially since I've spent thousands of dollars having a drain installed around my foundation specifically to keep water from getting underneath. If there's a drain close by I'd just run the pipe there as you've shown. And screwing to the furnace shouldn't be a problem, but I'd recommend taking the cover off & making sure there isn't anything where you'll be adding screws.

However the bigger question I have is why put a ball valve on the drain? In order to clean the line you're going to have to shut the humidifier down anyway. If you attempt to shut down your valve and clean the drain without shutting off the humidifier it's just going to back up & overflow out of the humidifier. Once the humidifier is off water should stop coming out of the drain & the valve won't be doing anything.

Maybe I'm missing something but I've worked on quite a few humidifiers & have never seen a shut off on the drain.
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Old 02-27-2013, 12:39 PM   #5
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What is an acceptable way to fasten this drain pipe?


I just installed a drain nearby, so I rather run it to that. It will be joining in with the furnace condensate.

Never thought of just screwing it straight down though, I might do that. I will be installing dricore but I'll probably want to leave a bit of a space around the furnace and water tank area anyway in case one of these appliances ever needs to be replaced and is not the exact same size.
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