Garden owners have their own idea of how they would like to design their gardens with water. Consequently every body of water has its very own individual requirements for a filter system. Whether large or small, with or without fish stock, Watertech Ltd. can design the best equipment for your pond.



In a pond, a filter and watercourse pump must be designed in such a manner that it can pump a particularly high volume of water, plus the contaminants introduced into the pond through leaves, floating plants or animals, to a filter. The filter then takes over the cleaning of the water.

The right selection of a powerful filter and pump combination is the key factor for the subsequent quality of water.

Depending on the type of the body of water, its size and quantity of fish stock, you select an underwater filter, pressure filter, flow through filter, or module filter.

If the filter must perform multiple functions, such as feeding a watercourse or serving as part of a fountain system, we recommend that you include these functions in your planning.

When the fish stock increases, you should also consider increased performance of the filter. The higher the nutrient input due to more fish in the pond, the more capacity the filter should have.



Every garden owner is pleased with the clear and healthy water in his/her pond. But what happens when suspended algae or other particles turn the water green and lessen the enjoyment of the garden pond?

This can be changed: Simply place a UVC clarifier in the water circuit of the pond – ideally in combination with your filter. The special UV light rays cause suspended algae, bacteria, and germs in the water to be killed off. If the water is then routed through a filter, these residues remain in the filter sponges and the pond water becomes clear.



Every creature needs air to breath, to grow and to thrive. In a garden pond, oxygen in particular, is of vital importance so as to allow many different creatures to make this small space their home.

This variety of fish, plants and smaller organisms consume a lot of oxygen, particularly in the summer months. Consequently in the warm season we recommend that owners support their pond through the use of pond aerators or fountains or cascades.

Watertech Ltd 2015 ®. Developed by Wicre8 Ltd