Danner Manufacturing, Inc., Pondmaster 500 GPH Pump, 02525

Installed in my 300 gallon pond, running to a Vevor UV pond filter. It hasn't been turned off since I installed it, no issues. Much higher quality than my last solar pump. Seems very heavy duty for the application, flows water well, quiet. I have cleaned it once, but it didn't have much build-up.

if i was using pump submerged i wouldn't have noticed but i'm using it inline and it leaks from what i discovered was a crack in the impeller housing.

This is a replacement for the same model that has been running continuously for almost twenty years. The old one had not failed, but was partially clogged. I thought I might need a new one before taking the old one apart. I noticed very few in line pumps being sold. When I found this on Amazon, I decided to buy a new one because of this and have the old one for backup. This pump can be used in line and submerged. I went through three other brands that failed before buying this.

The year was 2014. The project was to restore an unkept pond at the new house. I had the time but not a lot of money. I had to redo everything with the pond stone, by stone, new liner, and of course a new pump. I did a bit of research and decided to go with this one. This pond also ended up becoming the sump tank for my aquaponics system. At first, I used 2 separate pumps, one for the waterfall and the other for the system. After the smaller, cheaper pump failed, I redid the piping to just use this pump for both. I have had a few half-dry runs when the pump has drained the pond due to an issue with the piping, ( poor fish, didn't know what was going on). The pond and system have frozen a few times. But the pump has never let up or failed. SO 8 years later and the pump is still moving plenty of water throughout the pond.

still working great. I have gone thru about 5 different pumps and they seem to last a week or so. decided to go for a nicer one and it is doing awrsome