nishialon asked: I’m building a waterfall that empties into a pond (that’s where the pump and skimmer are.) Some people say that I need to cover the EPDM with rocks - but the sides of the pond are steep, even with the ledges that I dug into them.
Is it okay just to put rocks around the perimeter of the EPDM? Will the EPDM get damaged otherwise?
What other materials besides rocks can I use?
Daniel