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Old 09-28-2016, 06:37 PM   #1
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Sewage hose very odd question...

Greetings,
Without going into too much detail from this end, how does the white hose most everyone uses for their head and holding tank installations react when in contact with gasoline or gasoline vapors for prolonged periods of time. This will NOT be used in a marine application!
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Old 09-28-2016, 09:50 PM   #2
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Old 09-28-2016, 10:43 PM   #3
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Attack the question from another angle. The white sanitation hose is PVC (I think). White PVC pipe is fine for sanitation, too.

Googling this subject will be both revealing and confusing. Apparently, some PVC hoses are OK for gasoline. Probably lots of formulations of PVC, some more suitable for some things than others.
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Old 09-29-2016, 12:15 AM   #4
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Quote:
Originally Posted by RT Firefly View Post
Greetings,
Without going into too much detail from this end, how does the white hose most everyone uses for their head and holding tank installations react when in contact with gasoline or gasoline vapors for prolonged periods of time. This will NOT be used in a marine application!
Flexible PVC is a completely different product than hard PVC...and not all hard PVC is the same...there's sched 40, sched 80...ABS.

If you're referring to the cheapest white hose that permeates in a heartbeat, it's #148 flexible PVC...it'll lsoak up petroleum faster than it soaks up sewage...and the last thing you need are gasoline vapors in any enclosed area. Pick up some hose that's rated to carry gasoline from an auto parts store.

Here are the specs for fuel hose:

http://tridentmarine.com/wp-content/...tion-Sheet.pdf
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Old 09-29-2016, 07:14 AM   #5
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Greetings,
Thanks all. That pretty well answers my question. Just thinking outside the box...
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