Hose Permeation - SailNet Community
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post #1 of 37 Old 4 Weeks Ago Thread Starter
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Hose Permeation

Which hose are people going with to prevent head hose permeation?
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post #2 of 37 Old 4 Weeks Ago
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Re: Hose Permeation

Sanitation grade hose. There are lesser-quality hoses that look similar to the white sanitation hose, so make sure it specifically says "sanitation."
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Re: Hose Permeation

Suggests on brand? The stuff is impossible to bend. Tricks using it?

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Re: Hose Permeation

I used trident 101 Sani-shield (white): https://www.defender.com/product.jsp?id=1845631

It's very hard to bend, heat is necessary for most bends. For the really tight turns I used PVC elbows. Also hard as the devil to get it over barbs ... heat and pipe lube helps.

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Re: Hose Permeation

If you cannot handle the stiffness of Trident 101/102, Raritan Sani-flex has an excellent record and will go anywhere a hose can. That said, it is so flexible that you can over bend it and create a kink, so don't force it and respect the recommended minimum radius. But it is a joy to work with, including fitting over barbs (KY or glycerine help).
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Re: Hose Permeation

Trident 101 or 102 (black or white) has a 10 year odor free guarantee, it is a double wall rubber hose with a bacteria (?) scrim barrier between the layers. Very stiff and expensive hose. Raritan has a sani/flex hose that is quite flexible in white with a 5 year odor guarantee, butyl rubber I believe, which has been quite successful. Also quite expensive, but this is a task most don't want to be doing often. Rubber hoses seem to be the most reliable. The best and cheapest would be rigid PVC schedule 40 DWV pipes and fittings which have a short section of good sanitation hose at the head and at the tank to accommodate vibration. The pipe needs to be sized to fit the ID of the hose with the OD of the pipe, slip on with clamps. Good luck.
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Re: Hose Permeation

The best answer is PVC pipe, not hose.

You have a brand new boat, so probably won't be worrying about hoses for many years.

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Re: Hose Permeation

Fountaine Pajot isn't known for using the best quality hose for the blackwater tanks. I'm going to change it before we start out circumnavigation next year.
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Re: Hose Permeation

I have used Shields Poly X. It is good stuff, but not cheap.
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Re: Hose Permeation

thanks.
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