the dreaded Jabsco toilet and pump out!!

[jaysparticus]

Hi All,

Hope you have all enjoyed the summer.... quick question, when we pump water out of our jabsco toilet it should go to the holding tank but instead it is going straight over board? is this because the tank is full?
also....( its a new boat by the way we have a jabsco water 'pump' next to the holding tank.? now this could be something completely different to the toilet system but just wondered ?

any help for a land lubber appreciated

thanks

jay

 

[l'escargot]

There is most probably a diverter valve (or possibly 2) on the toilet discharge pipe - one way to overboard, the other way to the tank. The water pump is most likely the freshwater pump and not related to the toilet system, turn a tap on and see if the water pump operates.

 

[jaysparticus]

thats what i thought regarding the discharge pipework but unable to trace it !!! good shout with the tap.... will try that one

 

[Nick_H]

The diverting between holding tank and sea outlet is normally done by means of a two-way sea cock, so check the hull area near to the toilets.

 

[jaysparticus]

ah ok, we thought it must have been full and was overflowing. i takie it most toilet systems have the option to pump straight overboard at sea and into holding tanks when inland.

 

[Tranona]

It may not necessarily have a diverter valve. Some systems pump everything through the tank and it is only held there if you close the outlet seacock, or possibly a separate valve in the outlet from the tank.

 

[Alpha22]

But also... In a conventional system. If the tank is full AND there is an overflow, it will just pour out of the overflow. The overflow/vent is usually higher up on the hull and not underneath.

 

[Nick_H]

Boats are different of course, but on mine it starts backing up in the bowl before it overflows through the vent pipe.