Need some more advice here. This is a Hayward sikmmer. It was installed in 2000, before we bought the house. The cutout where the skimmer is, is corroded badly, and we had been getting rust stains on the pool liner. It doesn't seem like it was installed correctly, as there was a gasket between the face plate and the liner with the liner being in direct contact with the steel pool wall. The part of the wall that is corroded is in direct contact with the pool water. That's not right, is it? What model of Hayward Skimmer should be installed in a vinyl liner pool with steel walls?
Thanks for any help,