Jeff wrote:
Peggie Hall wrote:
...

His toilet is below the waterline...I'd bet real money that a) he's
never installed a vented loop in the head intake...


Just curious - do most new boats come without the vented loop, or is
this caused by poor refits (or both)? Also, do the vents get clogged or
fail on their own? How often should they be cleaned out?

Thanks
Surveyors will look for the vented loops and note if they are not there.
Insurers require them. The need annual cleaning routines.

Gaz