How to insulate well pump pipe in crawl space to stop from sweating
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Basically, you just wrap them in foam pipe insulation, which looks like a skinny pool noodle. There are pictures and instructions here: https://www.familyhandyman.com/plumbing/how-to-fix-sweating-pipes/view-all/
I have a cottage with kind of the opposite issue. When I drain the house in the fall there’s a short piece of pipe between the first valve and the ground that still has water in it. I DONT WANT THAT PIECE OF PIPE TO FREEZE!
I cut a cardboard box to fit over it with a notch for the pipe that goes to the water storage tank and doesn’t have water in it in the winter.
I placed a heavy duty plastic bag over the problem area, put the box over that and then wrapped the bag around the box to make it waterproof. I used a couple of those air bags that come as packing material right next to the pipe and around the valve so I could get the insulation off in the spring. I filled the box with expanding foam that comes in a spray can. I now have a nice warm cloche.
Now, in your situation you have the opposite problem. You want to keep a pipe from sweating. Have you tried the foam insulation thanks slit down one side? You probably have some twists and turns on that pipe so it’s not working very well.
Cover your pipe with plastic wrap. Use a large tube or box that fits around your pipe but leaves a couple of inches of space for the spray foam. Where your pipe bends put a small box or packing air bags so you don’t waste spray foam But leave room for the foam!
If your pipe is long add some small holes to make filling with the foam easier.
Add the spray foam.
When the foam has cured carefully cut it away on opposite sides and work it free from your pipe. That way you can get to the pipe if you need to.
Check to make sure you don’t have empty spots and add foam if necessary. Use sparingly! It expands! You will need to carve your patches to fit after it cures.
Put the foam back on and tape it here and there with duct tape or electrical tape.
You could also put some money into the project and higher someone to do it. We have a big basement and crawl space company here in Michigan but Google for someone in your area. Get a quote and decide what would work for you.
I don’t know about you but I really don’t like working in my crawl space!
Try fiber glass wrap.
use a dehumifier-- you can keep your crawl space nice and dry with one-- run the drip line into another one like maybe your air conditioner and it will run out side
Hi Jzmuda, We had the same problem as well and the sweating created water dripping issues all over. We had recently moved to this area and was not familiar with the weather or the sweating so have some plumbing people out to give their opinion. Here what they said, You have no problem here, only need a dehumidifier. High humidity is the cause. Cheapest service call I have ever paid. Hope this helps.
We wrapped the pipes in black foam rolls.