Took winter cover off of pool, pool is almost drained. The installer is coming on Sat to install liner. I noticed that the pool has sunk a bit near the rails where my ladder has been for 10 years. I'd say it's about 2" or so out of level from the rest of pool. I guess all the weight from getting in and out of the pool over the years has done this. Do installers normally account for issues like this and fix before they put the new liner in or is this going to cost me more for them to re-level that area? I am waiting for them to open today so I can call them and ask, but I wanted to see what you guys thought first. What is involved in re-leveling ? The pool floor is fine, it's just the section near the ladder area.