So we have owned our home/pool for two weeks. Today while I was vacuuming I noticed a bulge in the side of the pool. Checking it out I can feel hard circular plastic "thing" behind the vinyl. the shape and feel is similar to the round jets on the opposite sides of the pool. this is near the skimmer. The pool has a new liner and other work prior to the house being put on the market. My question is since obviously the installers messed up are we covered to have them come out and look/repair this. And advice would be great.