I've had fish ponds for decades, and as they've become more popular, the filter equipment has gotten better and better. There are a few of the \"same design\" filter here, but this Vevor filter finally came out as the one that works (as opposed to other brands.) After another brand kept blowing the UV lamp (necessary for algae control) I took the head apart and found the ballast was wired to neutral instead of Line, as clearly indicated on the ballast. So while that worked for a while, it blew in a couple weeks. Replaced twice, even rewired it didn't last a month. So I tried Vevor's model - and wouldn't you know it blew too!! Theirs was wired correctly (with more advanced electronics in the head), so I figured this was a fluke. They replaced it promptly (through their ticket system) and it's been working for over a month now, so I think I finally have a good one! Their great customer service, plus a correct electrical design, makes this model stand out over other 'identical' models! I have a few Vevor tools and motors now, and they are all great! Fingers crossed for my fishies on this one. Specs: pond is 600gal, pump sized for this filter's max clears over twice gal/hr. With copious rain and barley straw extract occasionally, occasional net leaf and debris removal, built-in backwashing filter elements @3-4 months, this keeps pond crystal clear! Backwashing produces a good amount of algae, so that works to keep filters clean; when I've taken the filter apart the foam elements aren't even that dirty, certainly not plugged and the button has never popped up indicating high pressure. Easy maintenance.
Dragon9 
