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
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