Water first flows by a UV, and is pushed through specially-developed bio balls inside a biological filter for ammonia and nitrite reduction.
Bio filtration is a chamber containing living bacteria to capture and biologically degrade nitrogens in ponds. Bio filtration is required to break down ammonia into nitrite and nitrite into nitrate.

wilo jet wj 204
Wilo Star RS 25/6 cast iron circulation pump
HT CM50-160B
wilo top-s 30/4 230v screwed union cast iron circulation pump 


