| i use a dolphin av-150 with scattered aeration thoughout the pond
the manual pond bottom drain is connected to a 5 inch PVC pipe opening, with a vertical PVC pipe on top. I just pull the vertical PVC pipe and the water drains from the bottom. I think it only drains probably less 5% of total volume daily. Because of the location it would be difficult to connect the bottom drain to the another vortex.
by the way, what is static and moving bed? thanks
6 thousands gallons and only 5-6 fish, i have major reduction in the number of kois to do |