I have an inground pool that the previous owner had a hollow rectangle flowerpot 4'x1' poolside waterfall. It uses a return pipe that has a vavle on it. It sticks out of the concrete surrounding thepool, about 4 inches with a 2.5 coupler. I never liked it, is there any info on a hollow boulder that I could attach the line to? Everything that I see online has a pump included which I don't need.
Thanks for any help/ideas!