Sunday, 2 August 2015
UP FLOW BIO FILTER PART TWO
A few system changes were required before I could add the new filter.
The new grow beds will sit above the second sump tank ( orange barrel) so I had to reverse it. I also wanted to bring the inlet/outlet, as close as possible to the ground. The ball valve allows me to isolate this sump. Useful when cleaning. In addition when i have to add tap water I can add it here. i can then wait 24 hours for it to off gas the chlorine before mixing it with system water.
The various heights were critical. I incorporated a non return valve in the filter outflow. This will prevent back flow when the system is filled to capacity.
The draining point will allow me to clean the submerged bio filter behind the orange barrel.
Next step is to build the ladder supports for the grow beds.