About 2 and 1/2 years ago we had a new inground vinyl pool liner professionally installed. Ever since then, when we go to open the pool in the spring--we find the liner bubbled up & out in most of the low end of the pool and on the sides of the deep end. We have to take a part of the liner down to put a pump behind it to pump out the water. Then, when we go to put the liner back up-we have a hard time because shrinkage has occurred. Can you please tell me anything regarding why this is happening since the new liner was put in & what we could do to correct the problem? Any information we be immensely appreciated. We are at wits end! Thank you. Evelyn:eek: