I had an extra Sta-Rite 1HP shallow well pump laying around and since the pump went out on my hot-tub, I decided to mount it outside the room with a new heater. After running it for almost 3 days - cooling down to around 95 and heating up to near 104 for several hours, the pipes melted. I think it might have been mostly from the heat of the motor and the wooden enclosure.
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zliminator
PCV melted
I had an extra Sta-Rite 1HP shallow well pump laying around and since the pump went out on my hot-tub, I decided to mount it outside the room with a new heater. After running it for almost 3 days - cooling down to around 95 and heating up to near 104 for several hours, the pipes melted. I think it might have been mostly from the heat of the motor and the wooden enclosure.
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was the pump pushing enough water? we've had pumps melt pipe before when oh lets say a homeowner put time on a station that doesn't exsist... pump comes on starts pumping, water doesn't go anywhere pipe heats up and boom, no more threads at the pipe, just melts them. we now of course always use about 12" of galv coming out of the pump
Usualy with a system on a pump you will want to hook a jump wire from any unused zones to an existing zone to prevent that from happening. Especialy on systems with Raindial controllers as raindials reset to 10 min a zone all zones after a power outage.
most of our homeowners w/ pumps don't even know where the controller is, so it only been a problem on 1 property
don't know I called him yesterday to offer use of the flat screen for the fooseball game, but haven't heard from him... I'm afraid he might have been attacked by a cougar
Its a hot tub so there are no 'zones'. I'm going to try it again, this time I'm going to make sure the pump runs for a while after the heat shuts off. Also I'm going to either loose the box over the pump or use a fan. I'm also going to try letting it cool down after each time I get it up to around 105 F. BTW, in my title I misspelled PVC.
Dan
Dan
wait, your pumping hot water...
Ever bothered to read what is written on the side of PVC pipe...use CPVC.
I agree with you on this but my hot tub is only made out of pvc. It is an older unit that was made out of straight pvc that was heated up with a torch and then bent to the curve that it needed to be in. All of the repairs that I have had to make on it were done with flexible pvc. It works real good for this type of low pressure work.
I didn't think you could get CPVC and bigger than 3/4". If I could just find 1" then that's all I would need from the pump to the heater. You know, come to think of it... I'm using a shallow well pump. Was that really designed to pump water as hot as 100+ degrees F?
Dan
Dan
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