Thanks, Ben for the advice..

would you know of another product that might come in a stainless color/gray maybe? some of the wall seams also have caulk i guess where my dad thought they were leaking or just wanted to make sure they didnt! I know when this type of pool was built the seal for the wall seams were on the back ....so caulk on the water side must have meant a leaking wall panel........

thanks again for your advice, mack