I have had this pump a little over two years now and at this point have had to replace the impeller system twice it does not seat well inside the pump head because of this it ends up tearing the thin piece of aluminum that holds the magnet together to shreds. This is something that needs to be fixed or redesigned. Upset and have gone to a different company for my pump needs now.

This is a wonderful pump but be warned. I just got off the phone with one of the engineers at March asking him why my pump kept squealing even though I know for a fact I had no cavitation. He asked some questions and determined that the 1/2" couplers on my kettle were choking the flow to the pump essentially overworking it and that causes the impeller and thrust washer to seize. He recommended a minimum of 3/4" on the inlet side all the way to the kettle including the kettle fittings themselves but that 1" would be even better. Other than that this is a great pump.

I have a 25 gallon brewhouse that I use this pump for. I can easily throttle it back to use for mashing or I can open it up to whirl pool while circulating through my plate chiller. To prevent cavitation I would recommend a 1" hose for the inlet if you want to open the output valve all the way.

This has been one of my most reliable pumps. All March pumps have served me well. They are reliable and can take abuse. I use this pump for my work and chill. It is fast and efficent - able to move the wort a great distance. I never have air-lock issues like I use to on the older model pumps. A great choice if you need the power.

I use this pump on the wort side of my system. During the mash it works terrific recirculating through my 50 foot HERMS coil inside my HLT. During the boil it works terrific moving the boiling wort through my counterflow chiller to sterilize it and then upon completion of the boil for cooling the wort. I also have the smaller March pump just for the HLT. This smaller pump I fear would not have the power needed to move some of my worts through that HERMS coil. This one has never disappointed me. Futhermore this one is rated for our boiling worts!! A representative of Little Giant told me I would void my warranty using ANY of their pumps with boiling wort!! Hope this helps cheers!!