sealing up PVC conduit through a wall

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  #1  
Old 10-23-07, 09:29 AM
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sealing up PVC conduit through a wall

I have two places where I have to go through walls with 1" PVC conduit. The first one is into the house, that will be drilled through wood, above grade. The second is through 8" concrete block below grade.

What is the best way to do this so the holes are sealed up good?

Kind of related to this. I have to run the pvc into a metal outdoor panel. Is there anything special I have to do to seal up those connections?

Thank you,
Brent
 
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Old 10-23-07, 06:10 PM
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If you are going through the wall below grade, good luck.
Without using a special wall seal, you are asking for leaks.
The only alternative is hydraulic cement which expands as it hardens but using it can be tricky.
If you can find a way to penetrate above ground, you would be much better off.
Above ground, seal around the pipe with some good silicone sealer.
If your pvc is entering the bottom of an enclosure just use a pvc connector and locknut, in the side use a connector and a sealing locknut(It has a gasket built in), top of the enclosure use a Myers hub.
 

Last edited by dezwit; 10-23-07 at 06:11 PM. Reason: Add
  #3  
Old 10-24-07, 06:26 AM
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Originally Posted by rade0041 View Post
The first one is into the house, that will be drilled through wood, above grade. The second is through 8" concrete block below grade.

What is the best way to do this so the holes are sealed up good?

Thank you,
Brent
Above ground and thru wood, I would use a good quality latex caulking....it can be painted.

Below ground, the trick is to keep the hole as small as possible, use (portland cement based) "mortar" to fill the gap and after the mortar dries, use a good quality waterproofer to cover the mortar and the surrounding area of concrete block.

A good product that I've used in the past is "Ugg" (brand name).
It's a solvent based water proofer, and it works great.

If you don't do the waterproofing job right, you will live with the results forever.....leaks, mold, mildew, discolored paint, etc.

Just my opinion
steve
 
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