This is my second Water Master Clear Pump. The first one lasted 6+ years running 24/7 year round in all types of weather and temperature extremes in my outdoor waterfall feature. It gave flawless service without cleaning or any other maintenence. In addition, the water being serviced contained copper sulphate for algae control,(highly corrosive), which did not affect the function of the pump. I would recommend this "workhorse" to anyone for long term heavy duty action.
Rating: [5 of 5 Stars!]