Cable pipe into basement is leaking

431 Views 10 Replies 5 Participants Last post by beenthere, Mar 10, 2020

jeffnc

Discussion Starter · Mar 9, 2020

Not sure what the correct terms are here, but the lines running from the exterior unit to the interior run through a cinder block wall into a basement. It goes through a PVC "conduit". I'm working on exterior grading, but for now I want to get this thing sealed off so no water or bugs get in (water is the problem when it rains, right now.) What it the best way to seal this? Will regular spray foam work?

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1 - 11 of 11 Posts

roughneck

· #2 · Mar 9, 2020

The penetration should not be installed below or even with grade.
How sloped is the grade away from the home now?

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JIMMIEM

· #3 · Mar 9, 2020

Would it be possible to have it enter through the wall instead of the cinder block? If so you could make a drip loop. If it has to go through the cinder block can you tilt the conduit so that it points downward toward the outside of the house....this would prevent water intrusion as it would have to flow uphill in order to get inside the house.....then just fill with silicone caulk.

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jeffnc

Discussion Starter · #4 · Mar 9, 2020

No on changing the entry location. Possibly for changing the angle - I'll see.

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JIMMIEM

· #5 · Mar 9, 2020

jeffnc said:
No on changing the entry location. Possibly for changing the angle - I'll see.

One more thing on changing the angle.....the opening of the conduit inside the house needs to be above the level of the outside ground grade.

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jeffnc

Discussion Starter · #6 · Mar 9, 2020

roughneck said:
The penetration should not be installed below or even with grade.

Of course.

roughneck said:
How sloped is the grade away from the home now?

It's complicated and can't be done right now.

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JIMMIEM

· #7 · Mar 9, 2020

roughneck said:
The penetration should not be installed below or even with grade.
How sloped is the grade away from the home now?

If the opening inside the house is above grade and the opening outside the house is below grade water will not get inside the house because it would have to run uphill in order to do so.