We just finished our pool about a month ago. It came out great, but I'm not too crazy about the "cascading" spa aspect. It's more just down the face of the tile than a "waterfall" effect we'd rather see.
Questions I have, is there a safe way to manipulate the water from the pump to add more water to the spa than going to the pool and thus cause a waterfall? Is it safe to turn the pool return off and only have the water return to the spa this increasing the water in the spa and more "waterfall"?
I just don't want to burst a waterline testing this theory out.

Questions I have, is there a safe way to manipulate the water from the pump to add more water to the spa than going to the pool and thus cause a waterfall? Is it safe to turn the pool return off and only have the water return to the spa this increasing the water in the spa and more "waterfall"?
I just don't want to burst a waterline testing this theory out.
