This is an easy to service filter and filter media is readily available from various pond suppliers. A bit small for the size pond we have but works well in fall through winter. Need to service more often in late spring and through out summer. Best to purchase 2 so you can rotate one out and service the other when convenient. Typically service about every 3-4 weeks for our pond (est 3000 Ga). Have tried to purchase additional filters but Overstock no longer carries them.
I really, honestly didn't think this would work. I had a small pond with a regular bottom filter and it was nasty green all summer long. Even after cleaning it, it turned green in a day. But this UV filter is amazing! It took about a week to clear it up, but now I can see my fish and the bottom of the pond! I'm still using my bottom filter with it. This really works!
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