Florida Keyz wrote:
Peggie,

Would that be true if the first 10 feet were approved piping?


Just how far from the toilet IS the holding tank? 6' is the optimal
distance, 'cuz that's as far as bowl contents will travel in the time
that 99% of people will spend flushing, and also as far it can be moved
in the dry mode. 8' is ok--barely, but only if those using the head
"train" themselves to flush longer. Longer than that, and it's almost
impossible to avoid leaving waste sitting in the hose or pipe to build
up and create clogs.

There are exceptions, but only on large yachts on which the toilets are
designed to use huge amounts of flush water under a lot of
pressure--toilets that you won't find in the boat stores or retail
catalogs. Hard pipe can be used in those applications, but should only
be used for long straight runs, and it has to be "soft-coupled" to
anything rigid with enough hose to cushion it from shock...'cuz PVC
cracks easily. That makes it impractical for use on the average
recreational boat.

--
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://www.seaworthy.com/html/get_ri...oat_odors.html