I hope it never ever ends...I'm putting together the STINK SYSTEM....cloner vegger and flower power...I have two pumps http://www.hardwareandtools.com/Master-Plumber-1-10-Hp-Therm-Utility-Pump-540072-by-Pentair-Water-u540072.html and then this pondmaster magnetic drive Model 3 - 350 gph maximum...