5600 12 Day timer for Filter Applications.
Commonly used on Tanks with Greensand media using Potassium Permanganate Feed systems.
Also, can be used for Katalox Light
and Carbon media
tanks that draw chlorine from a small "feeder" tank.
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Tank Diameter - How To Measure and Why
* Greensand valve would have # 2 PVC injector Set as opposed to regular plastic ones.
Main Piston would be the Black Topped "filter" piston that provides longer Backwash and Fast Rinse time to the regeneration process.
And it has a "draw cycle" ( using Brine Valve Piston to control flow in and out of the valve head and tank ).
A standard "filter" valve usually is a "Back Wash Only", with NO suction, NO brine valve or Injectors used.