My pool deck drain strip is clogged with roots and dirt. I started to dig for a drain pipe since the deck always floods after heavy rain only to find an existing, anf clogged drain . The trouble is the drain pipe isn't attached to the deck drain, it's just in the vicinity. And the end of the deck drain has a lot of roots and mud in it. I don't see any way to open the deck drian to clean it out. Does anyone know how I can clean it out?