This is the second time typing this up so you'll just have to imagine the sheer prose, wondrous humour and impeccable grammar of my lost posting
Anyway, I have one of these Jabsco
heads, believe its somewhat less than four years old and to my eye everything looks alright. We've had the boat for less a month and during this time have used the head
a few times. Okay, a fair few times.
While it started of fairly stiff to pump dry it is now getting to the stage where I feel the pressure required indicates some piece of critical piping is going to burst, or a seam will split with unspeakable results.
Anyway, being the adventurous type I opened up the holding tank inspection hatch
and verified the everything looks *all right* which it does in a kinda scummy and unfortunately rather smelly way (working on that - we'll see if the vinegar and enzymes added this weekend help by next weekend). The tank isn't full, flush operation on the pump proves that water
flows readily into it. Pump dry operation gets some water
there but it still feels like there is a load of air trapped there somewhere (very compressible).
I'm hoping this is a real easy fix, something that doesn't necessitate dismantling the whole thing. Right now I'm suspecting the Joker valve to the discharge pipe but don't understand why it would work perfectly when the pump is set to flush.
Anyone experienced something similar?