In a blog from January 2016 Dan wrote:
“A small rust hole that’s located high up the pool’s wall is usually alright.In that case I will cut a small square of roofing tin or some kind of sheet metal and use duct tape to secure it in place over the area.”
I had this done by a local pool service and the hole no longer leaks, but nothing was done to fill the hole from the outside. I still see the hole and when looking through it I see the metal patch that was put on the inside.
Is there some sort of filler (like a spackle for metal pool walls) that should be used or just leave the hole in the wall visible?