I have a cinder block basement with a plastic/rubber water main entering the house through a hole in the foundation.
Last winter we had a very heavy snow and a quick thaw. During that time, a water leak developed around the pipe.
I cleaned around the pipe as best I could and filled it in with "Great Stuff". Over top of that I sprayed quite a few layers of Leak Sealer (forms a a kind of rubbery seal) then silicone on top of that.
It looks sealed well enough, and that is the only time I've had a leak before or since. However, going into winter, I am concerned that the water will still leak into the outside of the foundation wall and could force its way other places in the cinder blocks, doing damage I may not see as quickly.
Our plumber recommended excavating to find the pipe outside and patching the exterior wall with hydraulic cement and tar, so I began digging down to find the pipe (around 3 ft below grade).
However doing some research ****** I have seen lots of conflicting opinions about hydraulic cement and exterior patching. The preferred treatment seems to be a polyurethane injection from inside, but I also read that is not suitable for cinder block foundations.
I am no expert and would appreciate the forum's help and guidance. What is the best way to ensure no water gets in?
Thanks in advance!