My 1 inch plastic water pipe from the utility comes through the basement wall inside a 10 foot long plastic sleeve which runs underneath the front porch. The sleeve runs downhill from the front of the porch to where it enters the basement wall. In the basement, the installers caulked the space between the inside of the sleeve and the outside of the plastic water pipe to prevent any water in the plastic sleeve from leaking into the basement. I do not know what type of caulk was used. The caulk seal lasted for 10 years without any problem.
Recently I had plumbing work done in the basement and I had to re-caulk the space between sleeve and plastic water pipe. Apparently my caulking job was not good enough because after 6 weeks, the seal started to leak - water in the sleeve was dripping into the basement. I used GE Silicone II 100% silicone caulk that I put on in thin layers. See the attached photo.
Questions:
(1) Is GE Silicone II 100% silicone caulk the proper material to seal between the sleeve and plastic water pipe?
(2) Is there some technique I should use when applying the caulk to ensure that the caulk adheres to the plastic water pipe so that the seal does not break over time?
Thank you.
Recently I had plumbing work done in the basement and I had to re-caulk the space between sleeve and plastic water pipe. Apparently my caulking job was not good enough because after 6 weeks, the seal started to leak - water in the sleeve was dripping into the basement. I used GE Silicone II 100% silicone caulk that I put on in thin layers. See the attached photo.
Questions:
(1) Is GE Silicone II 100% silicone caulk the proper material to seal between the sleeve and plastic water pipe?
(2) Is there some technique I should use when applying the caulk to ensure that the caulk adheres to the plastic water pipe so that the seal does not break over time?
Thank you.
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