Originally Posted by pitrack
So basically this set up needs to be constructed before the pool is built. As in you could not add a waterfall to an existing pool since you need that drain at the bottom? I'm sure there are ways to tie one into an existing pool though. Does the chlorine or in some pools salt water affect the pumps at all?
you can tee off the suction line to add an additional pump for the water feature. it takes (2) check valves, 1 above the tee for the pool pump and 1above the tee for the water feature, i suggest using www.waterwaysplastics.com
for the check valve suppliers as you can disassemble the valves for cleaning.
these keep the water from being siphoned from one pump to the other, you won't lose prime this way either.
this is possible since the pool filter should be set to run at night, i usually start mine at midnight.