I've had very good results with a Pondmaster 535GPM Mag drive pump, so when my waterfall pump quit I immediately looked at the 1800 GPM. So far I'm very happy with the choice. Pondmaster backs up the product with a great warranty. Only hitch is that the prefilter needs to be cleaned more than I'd like. I've got a spare so I rotate the clean filter every few days to keep the waterfall moving at the highest rate
Rating: [4 of 5 Stars!]