Above are the secondary filters & water course of my system
The filter system is of my own design and consists of a primary filter box and secondary filter box both with filter media which exits to a fountain head with the main supply of water being sent to the secondary filters (in the top of the above photo.) Which enters through a pipe covered with hollow bamboo to the bottom of a lined ½ whisky barrel up though Three sizes of river rock to a overflow tray filled with water plants to absorb the excess Nitrates over a small waterfall to a second lined whisky barrel, also filled with water plants over an exit to a small water course where the clean & Oxygenated water re-enters the pond creating the sound that you are currently hearing.
