Jebsco Heads. A possible solution?

Norman_E

Norman_E

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Following on from my thread on the joker valves I am wondering if I could solve the flowback problem a different way. I have already converted the flush to using grey water pumped in by an electric pump, and am wondering whether it would work if I stopped using the piston pump entirely and just fitted a macerator pump as close as possible to the toilet at low level, with a small diameter pipe up to the tank. A two way centre off switch could work both pumps, one way to flush, the other way to pump out. The question is do macerator pumps incorporate an efficient valve system that ensures that nothing can flow backwards when they are switched off?
 
Norman_E said:
Following on from my thread on the joker valves I am wondering if I could solve the flowback problem a different way. I have already converted the flush to using grey water pumped in by an electric pump, and am wondering whether it would work if I stopped using the piston pump entirely and just fitted a macerator pump as close as possible to the toilet at low level, with a small diameter pipe up to the tank. A two way centre off switch could work both pumps, one way to flush, the other way to pump out. The question is do macerator pumps incorporate an efficient valve system that ensures that nothing can flow backwards when they are switched off?
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ITYWF that you are describing one of the electric versions of the Jabsco. It has a double pump, macerator/discharge pump one end. Inlet pump the other.

Pretty sure it uses a Joker valve.

See the exploded diagrams on the Jabscoshop website.
 
I think all electric heads are macerators. Apart from a dreaded wet wipe around the blades(courtesy of the last guest who missed out on the operating lecture), my jabsco copy made by EMC has been trouble free for 8 years and only cost £120. A replacement motor is about the same price as a new toilet.
Jabsco do a conversion kit from manual pump to electric macerator.
 
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I suppose if you're going to use electrickery to flush, then it could simultaneously open a solenoid valve. Once the power goes off the valve will close, preventing reliance on the joker valve...? Mind you, a solenoid valve of suitable size may cost as much as the electrical conversion kit!

Rob.
 
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