Hi, I have visited this website for some time now, and have gained some valuable knowledge from here. Thanks to everyone who contributes here! I have a problem and hopefully someone can help me . We live in Southern California (Whittier) and completed our pool July 2006. Last year I noticed that in a small area around the perimeter, the pool seem to have "sunk" and the expansion joint had a gap. I didn't think too much about this since our pool builder had given us a summary of the pool phases and in this it stated that " the pool could appear to have sunk or moved, but this is normal due to soil expansion" It also stated that this was out of their control and normal. After doing some research, I thought after the cold season was over, it might shift back in place and level out and would would just patch the mastic in the joint. This didn't happen, and now it has gotten worse and there are now small opening in the mastic throughout the perimeter, aside from 2 significant areas. I contacted the pool builder and he said that this was the responsibility of the concrete sub who did the concrete deck and the concrete (gunite)in our pool also. We hired him to do our deck based on the recommendation of the pool builder who said if we used anyone else who was inexperienced in pool decks, he couldn't guarantee that the pool would not have problems. I contacted the concrete sub who agreed to take a look at our pool, but also stated that this was normal in our area. In my opinion, I don't think we should be having these problems so soon. I would appreciate any input on this, as I am not sure whether to insist they repair it or take on the repairs at our expense. Note: the owner of the pool company has since retired but the company is still running under new ownership. The new owner, who I contacted originally, told me since it was prior to 2007, he was not honoring any type of warranties and that I should contact the original owner of the pool company.Here are some pictures, this is the area where we originally noticed the problem.
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