air lock loop

[Sparks]

I have a loop from the head that goes behind all of the panels and comes down again.
Does anyone have any idea where the hose goes on a pearson 530 in the aft head.

The head is not pumbing out the water. The bowl almost overflows. I disconnected the hose at the y valve and it still dosen't come out. I put a fish tape in from both directions and it seems to stop at the top of the airlock loop which I assume is there.

How much pressure is supposed to come out of a raritan electric head?
Any ideas would be helpful.

Thanks,
Murray

[xort]

that is an anti syphon loop. You should be able to take it off the hose to check if it is blocked.

FYI; This would be better asked in gear and maintenance

welcome to sailnet

[sapo]

are the hoses and ventedd-loop fitting partially blocked with scale and mineral build up? Mine were 2/3 blocked.