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The PondMaster Pump Guard is made to help loosen mineral scale, lime, rust, and other detritus from pond water pumps. It keeps your water pump operating properly and efficiently and is fast and easy to use. It is Biodegradable and safe for use with plastic, ceramic, rubber, PVC, titanium, copper, nickel, and short term use with stainless steel. When treating just the impeller, pour the Pump
Guard directly into the volute/impeller chamber of
your pump. When treating the entire pump, either pour directly into
the volute/impeller, or dunk/soak the whole pump.