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Just replaced mine on a 2003 36 with an Osculati Muffler from here:
They have various sizes
Most likely due to repeated overcoating without properly removing old AF. So, remove all the old AF and, in areas where it is exposed to GRP, sand back and fare the edges of the primer to smooth, taking care not to damage the GRP. If necessary e.g. If damaged, reseal the GRP with epoxy then apply primer and then apply new coats of AF
Thanks for your help. I’ll look for a new one and, in the interim at least I have options to strip/clean.
Many thanks Jonathan. Fairly certain the water is caused by over pressuring of the tank, in turn causing leakage from the cap on the tank – the pressure was so great at one point that water was also leaking from the filler cap fitting on the transom. What I don’t understand is how the tank is becoming pressurised. If the breather (if that is what it is) was blocked, that would cause a vacuum as water was drawn from the tank and I’d expect that to result in taps/shower not working …….. unless it is a duff sensor and that is causing the pump to pressurise (every 2-3 mins) when there is no demand. I will start with an air leak search and then move on to a strip/clean/repair of the pump/gasket/strainer.
As an aside, we are finding the transom shower a godsend this summer, as we don’t have an internal shower (previous owners removed) – exploring the S Coast / Scillies / Channel Islands and it’s definitely warm enough for a swim! Thanks again. Chris
Thanks for the quick reply. Having crawled around in the sugar scoop space aft, there does appear to be a breather or relief pipe but ….. it terminates just inside the filler cap so once the cap is on, no air would get in. I’ve inspected it but only to ascertain if it was some kind of jury rig and it seems to be as built. As far as the pump is concerned, the noise itself is not so bothersome, its the fact that the pump operates every 2-3 mins even without demand so for me to get any sleep, I have to switch it off.
I currently own a 2003 B36 which has two tanks. The after tank is under the port aft cabin bunk. In front of that is a “Fwd/aft” lever valve to switch from on to the other. They are both operated from the single pump, again located by the after tank. Hope that helps.
