Updates on Bell Valve, I did cosmetic changes to the valve. Following are photos of valve with some minor alteration.
Above valve with 4" cap from sewage venting system, make it neat and prevent gravel entering water flow area.
Cap removed, bell dome in position. This dome is not touch most of the time so I guess its ok to have it capped.
Bell dome removed, shows the stand pipe with 50 mm adapter opening with extender pipe (ring) in place to make water level higher.
Shows picture with extender pipe removed, this will make water level lower.
I hope to finish the setup by this weekend, need to do water inlet in grow beds, pipes going beneath grow medium.
How to make Bell Valve check : Here
How to make Bell Valve Aquaponics System check : Here