VEVOR Pool Fountain Stainless Steel Pool Waterfall Spillway with Pipe Connector Rectangular Garden Outdoor (59.1")

Q: What is the GPH pump recommended for the 23.6" unit?

6500 to 8000 that's liters per hour I bought the 9000 gph to feed 2 twelve inch and one 24" water fall with valves for each one and it fills all 3 sufficiently good flow

Q: For a 59.1” unit, how many gph for a 16 foot head height? it’s for a water wall cascading over stacked stone.

it depends but to be safe 3900 gph should be good. If you run it through a filter, the waterfall isn’t as strong, if you run it straight from the pump, it’s like Niagara Falls

Q: For a 12 Inch spillway how many gallons

Hi buyer， Thank you for your time to the mail. Usually above 2HP or above 6600GPH can meet the requirements Hope this helps. Best wishes, Jennifer Customer Support