Skip Gundlach wrote:
Back to the subject at hand, if getting them in is as easy as getting them
out, I'm all for not doing it again. Granted, I had to take out something
on the order of double, in that I removed the aft Lectra-San, with its
attendant very long runs of hose...

There shouldn't be any long runs of hose in a Lectra/San installation.
It should be installed within 6' of the toilet and also within 6' of the
discharge thru-hull. Two toilets CAN be connected to the same unit, but
only if the L/S can be within 6' of both. I think you made a mistake in
removing it altogether...why store waste aboard if you can discharge it
legally AND with far less negative environmental impact than dumping a tank?


, *plus* the very tall vented loop runs...

Necessary for any below waterline thru-hull connection...so you gained
nothing there.

On the center line, how far above the water line does it
have to be for safety? Above any level of conceivable heel's waterline?

Above waterline at any anglel of heel.

Given that it's full of water and other crap (pardon the expression), all
the time, against the duckbill, it makes me wonder.

Any manual marine toilet that's working anywhere near factory specs can
move bowl contents at least 6' in the dry mode...so if you learn how to
flush your toilet correctly, there shouldn't be any water or waste in
the line between the toilet and top of the loop to run back down into
the bowl.


On the subject of joints, I'm of distinctly curious mind. While my current
home isn't this way, my prior home had hundreds of feet of PVC pipe run,
with all the necessary ells, Ts and other fittings, all successfully
carrying high pressure hot and cold water.... Am I missing something?

What you're missing is: houses stay put...they don't get tossed around
by wind and wave. Boats do.

--
Peggie
----------
Peggie Hall
Specializing in marine sanitation since 1987
Author "Get Rid of Boat Odors - A Guide To Marine Sanitation Systems and
Other Sources of Aggravation and Odor"
http://69.20.93.241/store/customer/p...40&cat=&page=1
http://shop.sailboatowners.com/detai...=400&group=327