When cleaning the gunk out of my skimmers today, I noticed a couple of my skimmers have cracks in them (in the top round part where the skimmer baskets are). What kinds of problems can I expect because of this? Am I probably losing water through those cracks? Are the skimmers difficult to replace? We have a concrete deck poured around all four skimmers.
Picture below from when we recently had our new liner put in. Will the concrete around the tops of the skimmers have to be cut to replace the skimmers?