Bests & Worsts Reviews from Amazon

1 Year Update - This pump has run continuously, yes continuously for 373 days, 24 hours a day. We have a 300 gallon in ground Koi pond. The original circulation system stopped working after 50 years and I purchased this as a temporary experiment. I hooked this pump up to a 12v deep cycle marine battery and used the solar panel to charge the battery so that we could have 24 hour continuous operation. It took a few weeks to develop a good filtration system around the pump, and that needs to be cleaned about every two weeks. I take that time to also flush the pump with fresh water to clear any accumulated bio material. The pump itself has never stopped operating and has maintained its pressure at a 3 ft foot rise. I have been careful to keep the pump submerged while operating.