[C320-list] Head backing up

[Chris Nichols]

On the assumption you are confident the tank is not full...

First check your holding tanks pressure release outlet - small Stainless steel cover on the stbd side amidships just below the toerail. This has a mesh screen that can easily get clogged - unscrew and clean. 

If that does not work then try using your head with the deck pump out slightly open to relieve pressure. If the head is ok then the pressure release pipe will likely be blocked. You might clear it with pressure from the outside (but beware too much because you can blow the pipe off the fittings. Or else try a thin  flexible Cable / conduit tool. 

Chris

> On 20 Aug 2020, at 05:11, David Veeneman <davidv at veeneman.com> wrote:
> 
> I have recently noticed a Robles with the Jabsco head on Adelante. After I pump the bowl dry, the system backs up a bit, and fifteen minutes or so later, the bowl is about 2/3 full of liquid waste.
> 
> This happens when I am using the holding tank. I pump the bowl dry, lock the handle, and leave the pump lever in the ‘pump dry’ position. Until recently, when I pumped the bowl dry, it stayed dry.
> 
> Any thoughts as to what might be going on? Thanks.
> 
> —
> David Veeneman
> SV Adelante, Hull#131
> Dana Point, CA
> 
>