Product review (5 stars): Along with this I bought Superior Pump 91250 1/4 HP Thermoplastic Submersible Utility Pump and ...
Works as expected. Used it to clean out my Tankless Water heater.
Along with this I bought Superior Pump 91250 1/4 HP Thermoplastic Submersible Utility Pump  and 3/4" SWT Isolator Tankless Water Heater Service Valve Kit