When Cleaning Your Pond’s Filters, Use Only Your Pond’s Water
This is the safest practice when cleaning your pond’s filters: use only the water from that pond. Do not use detergents or other cleaning agents, just the water from the pond where the filter was taken from. This way, you will not make any “damage” to the filter’s biological or chemical “make-up”. Also, do not employ any “vigorous” cleaning actions like deep scrubbing, etc. Just rinse and shake lightly to remove any loose “buildup” of muck.