A variety of filters is available.
Mechanical filters primarily protect the pump and fountainhead from becoming clogged with debris.
Biological filters allow growth of beneficial bacteria which helps to maintain good water quality in ponds heavily stocked with fish.
UV Clarifiers provide permanent control of suspended algae which cause green water. They maintain beautiful water clarity while reducing pond maintenance. The UVC bulbs should be changed at regular intervals, ideally in spring before the season starts, to guarantee the full capacity of the UVC output.
Natural plant filters incorporating beneficial bacteria and filter plants are attractive and effective.

For information on types of filtration, click here.