There's a simple solution to at least one of your problems
You said, "And while the Lavac is extraordinarily difficult to clog (I never have), it does a relatively bad job of cleaning it's bowl -- requiring multiple flushes...poking with the toilet brush...etc..."
The simple solution applies to ALL toilets, not just the Lavac: add about 1/3 bowl--a couple pints (here we go again! :dance
of water to the bowl ahead of solids. Some toilets (mostly only the pricy "thrones") have separate flush water/discharge funtions that allow the user to add flush water to the bowl ahead use--the Raritan Elegance has an optional flush button pad that does....but most manual and electric toilets don't, which requries using a cup and water from the sink. Or you can keep a gallon milk jug in the head...pour in a couple of quarts.
It's such a simple solution and so obvious (at least to me) that I've never understood why doesn't ever seem to occur to anyone.
As for the rest of your comments, you only confirm my experience: the Lavac is a great choice for crusing liveaboard adults who seldom have landlubber guests, but not the best choice for most "weekend warriors."
You said, "And while the Lavac is extraordinarily difficult to clog (I never have), it does a relatively bad job of cleaning it's bowl -- requiring multiple flushes...poking with the toilet brush...etc..."
The simple solution applies to ALL toilets, not just the Lavac: add about 1/3 bowl--a couple pints (here we go again! :dance
It's such a simple solution and so obvious (at least to me) that I've never understood why doesn't ever seem to occur to anyone.
As for the rest of your comments, you only confirm my experience: the Lavac is a great choice for crusing liveaboard adults who seldom have landlubber guests, but not the best choice for most "weekend warriors."