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Skip Gundlach Skip Gundlach is offline
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First recorded activity by BoatBanter: Jul 2006
Posts: 540
Default PVC piping in marine sanitary exhaust (was) Head Trip -- Thoughts on Vacuflush Etc.

On May 18, 10:32 am, Jeff wrote:
Skip - a few simple questions -

I'm thinking of putting some pvc in my from the head (lavac) to the
holding tank. What size pipe do you use, and how do you connect it?
Is there a size that you can simply clamp the normal flexible hose around?


you use standard Sch40 1 1/2" PVC and fittings. The end to take the
hose can be had in the proper size from SeaLand, who sells a hose they
claim (but which Peggie disagrees with) is superior to their prior
OdorSafePlus, sells PVC end fittings.

However, I just used barbed screw-in (to a pipe thread coupler)
fittings which I ground down to fit properly.

Better yet, I've learned (too late for the forward head) that you can
use a rubber coupling, flush fit, to whatever fitting you're using
(1.5" pipe and the barb described, but with a collar of 1.5" hose,
which makes it identical in size to the PVC). Three clamps - one each
at the ends, and one at the joint. The joint is contained in the
clamp in the middle, making any odor products have nearly an
impossible (I'm saying nearly because I don't have 5 years' experience
to back up my expectation of NO) chance of getting to the rubber
exterior. I've got that setup (flush - pardon the expression - rubber
coupling) at the head and at the through hull on the aft. All that's
to stop any future odor issues...

Hope that Helped...

L8R

Skip

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