The pool contractor who "partners" with the guy replacing my concrete told me that I needed to raise my sagging skimmer back level with the top of my pool. He said it is putting stress on the plumbing beneath it. Makes sense, but isn't PVC pretty flexible? I actually think it has been like this for a while, but it may have dropped more when the concrete was removed. Another concern is how the new concrete can be poured around it with it that low. Can I just dig around it until I get to the plumbing at the bottom? What should I use to support it so it doesn't sink again? Here is a photo of what it looks like.