Seal Pipe Penetration: My Plan vs A Better Way

Users who are viewing this thread

PGB1

Member
Messages
32
Reaction score
6
Points
8
Location
Detroit
Hello All!
My home had a manual backwater valve underground between the building drain and the sewer. (4" cast bell & spigot building drain - 6" clay sewer)
The valve was removed (By mistake by an excavator operator) A jumper of 4" schedule 40 PVC was installed in its place.

The valve had a 1-1/2" schedule 40 galvanized pipe (sleeve) on the top. Inside the sleeve is a 1/2" steel rod. At the backwater end,t he rod connected to the operator. At the house end (in the basement) the rod in the sleeve connected to a wheel used to operate the valve.

I can't get the sleeve out of the cement block wall (not cinder block- old concrete blocks but still webbed). It got hit by the excavator so the seal at the block is compromised.

I first thought of hydraulic cement, but the manufacturer (UGL) told me that the cement doesn't have adhesive qualities, therefore it won't seal. It has to be captured to form a water tight seal. (Example is an inverted vee notch it would expand into the notch and seal)

My Plan:
Cut the sleeve near the house
Cap it with a 1-1/2" Fernco cap to keep insects, rodents and water out. (Ground water occasionally gets higher than the pipe)
Clean the wall & pipe
Put urethane caulk around the pipe
Wait a day for the caulk
Put roofing cement over the caulk, lapping onto the pipe and wall.

The trouble is that whatever I do has to be permanent. The pipe is under my driveway and new concrete will be poured, therefore no future access is possible without a project.

Is my plan OK, or do you guys suggest a better solution?

Thank You Very Much for helping. I appreciate your help very much

Paul
 

Attachments

  • A copy.JPG
    A copy.JPG
    115.2 KB · Views: 30
  • B copy.png
    B copy.png
    690.6 KB · Views: 43
  • C.jpg
    C.jpg
    115.7 KB · Views: 34

Reach4

Well-Known Member
Messages
39,979
Reaction score
4,695
Points
113
Location
IL
What is it that you plan to bury -- the backwater valve?

Backwater valves need to be accessible. The flapper type will leak for sure with time, and would need cleaning. The normally open type are still supposed to stay accessible.
 
Top
Hey, wait a minute.

This is awkward, but...

It looks like you're using an ad blocker. We get it, but (1) terrylove.com can't live without ads, and (2) ad blockers can cause issues with videos and comments. If you'd like to support the site, please allow ads.

If any particular ad is your REASON for blocking ads, please let us know. We might be able to do something about it. Thanks.
I've Disabled AdBlock    No Thanks