Peggie Hall wrote:
Joe Bleau wrote:
Peggy--

Are there regs (Lloyds, AYC) on type of hose to run from head to thru
hull.

Nope..there are currently no standards whatever for sanitation plumbing
materials or installation.

I need to clarify that. Although there are no materials or installation
standards, the CFR and CG regs do include some requirements...i.e. all
waste tanks must be vented to the outside of the boat...gray water and
black water plumbing shouldn't be combined...acceptable ways to secure a
system. But when it comes to how to plumb a system or what materials to
use, there is nothing--at least nothing specific to sanitaion. There is
a standard advising vented loops in all hoses connected to
below-waterline thru-hulls and advice to keep all seacocks closed except
when in use, but that's it. When it comes to what hoses and tank
materials and how to plumb 'em, there's only collective wisdom.
--
Peggie
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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://shop.sailboatowners.com/books...ku=90&cat=1304