hello im getting ready to repaint the bottom of my mom and dads in ground pool, it was built in the mid 70's. It has epoxy on the bottom now. My question is where the stainless side panels meet the concrete bottom there is a big seam of caulk under the epoxy that needs to be cut away and replaced.(this is a no liner style pool) Can anyone suggest a good caulk for this underwater chlorinated application? Whjatever caulk is put there will have epxoy paint over the top if it as well. Someone who use to install this type of pool in missouri told me hes used a product made by vulkem but i forgot the number? thanks for you suggestions mack