Vortex Brushes

Description

Vortex Filter Brushes from Black Knight

Our Black Knight Vortex Brush is designed to get the most out of your Vortex filter, improving water clarity and maximising the effectiveness of your filtration system. Each box includes a single brush measuring 260cm in length and 10cm in diameter, coiled for a neat, compact fit.
The brush operates through three distinct mechanisms. To begin with, it acts as a physical barrier, catching larger debris that is unable to pass through the tightly woven, interlocking filaments. Secondly, each filament carries a natural static charge that attracts and holds onto finer particles as they flow past, retaining them until your next routine clean. Finally, once the brushes have been in use for a few weeks, their vast surface area becomes home to vast colonies of beneficial nitrifying bacteria, providing an additional layer of biological filtration.
To install the Vortex Brushes, simply place them in the flow of water. There are several ways to position them depending on your existing filtration setup:

If your second and later chambers are already packed with media, you have two options — position a single vortex brush near the transfer port, or arrange several to form a wall above the vortex inlet and below the outlet. This encourages heavier waste to sink to the bottom, while lighter debris is forced through the brushes where it is captured.
One or two vortex brushes can be wrapped around the outlet, requiring all water to pass through them before continuing.
Alternatively, you can fill the entire cross-section of the chamber to create a solid barrier. The more brushes used, the greater the filtration capacity and the larger the surface area available for biological activity.

Vortex brushes can be installed across as many chambers as needed. It is generally advisable to keep some space free in the first chamber to allow solids to settle naturally, while any additional chambers can be packed with vortex or filter brushes. Maintenance is straightforward — simply drain the chamber and rinse the brushes using buckets of pond water, without needing to remove them.