Velda Biofill XL Filter  Ref: BIOFILLXL
	Easy installation Connect the filter to a dirty water/pond pump for the circulation of pond water. Use a filter hose to connect the pump outlet to the input of the filter. Place the filter next to the pond and lower the pump under water. Activate the UV-C lamp and the water flow by plugging the plugs into the wall socket. Read the instructions first! All cassettes are removable, making it easy to rinse the filter materials. The first cassette is intended for the built-in UV-C Unit and the supplied Mineral Filter Start. In the lid there is also a provision for connecting an air pump. The second cassette is filled with bio balls. This filter material ensures good dirt filtration and has an enormous growth capacity of the microorganisms. The third cassette is equipped with a coarse Japanese mat that filters dirt particles from the water and over time comes to contain billions of microorganisms. The fourth cassette is filled with a finer Japanese mat that removes even the smallest dust particles from the water.