The tile on the roof of my skimmer throatjust collapsed. When we moved in 20 plus years ago, the tile was held in place by RTV silicone. I reset it but now there is more thinset that has come loose. I was told by a pool company that wanted $400.00 just to send a crew out without repairing anything that it should have had a header of some sort that spanned across the sides to support the coping which is about 4” wide, there are 4.5 coping tiles that span the throat. Interested in hearing opinions on whether I should just replace the tile, or wreck out good coping to put in a header on a pool that has never had one, Pool was installed in 1991