POPULO Hybrid Water Transfer Pum... vs Knifel Submersible Pump 600GPH U...

It is sturdy, portable, quiet, and powerful. I really like that it is both electric and battery powered.

This pump has been a game changer for me. I refill my tank every 2 to 3 days.

Not designed for pumping water out of a fountain. Units stops working after a few minutes of usage. Moust likely a heat problem.

I wish it had an adjustable flow setting. Multiple smaller efficient pumps so you have redundant backup. Also use a mesh bag over all your pumps to reduce added stress on the pump.