I would like to run the outlet from my pump (Savio WMS 1450 that sits inside the pond) through the wall of my preformed pond (Key Largo LP9118). Ideally I want to run the water line through the side of the pond and then into my filter (Savio f100) outside of the pond. What can I use to create a water tight seal that can connect to 1.5" piping both inside the pond and out of it? Thanks!