I just had an electric
macerator toliet fitted and I've been advised to fit a thru-hull fitting and ball-valve for the outlet
of my toilet? and being new to boat ownership
I'm not clear on why and it wasn't explained.
Is it to stop water
coming in the wrong way potentially when the boat
is left for periods of time, or when on passage
? Or is it a legal
thing or some other reason?
Thanks in advance for your input.