| Anywhere there’s vaccuum (I.e. cooling intake) for sure you’d want a non-collapsing hose. (Negative pressure more an issue than positive pressure)
I had a fibre reinfoced clear pvc reinf sink drain hose kink at a bend point and replaced it with MPI series 110 hose, which was much easier to work with than the stiff Lloyd’s approved stuff I had used elsewhere. I’ll use it to replace the clear stuff on other through-hulls in future. |
Dave Sent from my iPhone On Apr 10, 2025, at 12:17 PM, Joel Aronson via CnC-List <cnc-list@cnc-list.com> wrote:
David,
There is an ABYC standard: Hoses that connect to underwater fittings should be manufactured to SAE J20R3 as a minimum and marked as such on the outer surface.
They are reinforced (and yes, stiff). You could use wire reinforced clear hose. Less stiff than the black or sanitation hose.
Joel I am wondering if there is a reason why one would need to (or want to) use a thick, stiff hose for a sink drain connected to a seacock. It makes bends difficult/impossible and makes it difficult to remove the hose from the barb. It seems like overkill in a situation where there is little to no pressure on the hose. Something like Tygon/PVC tubing would seem adequate and much easier to work with. I would think the same would be true for the raw water cooling hoses. Am I missing something? Dave
S/V Aries 1990 C&C 34+ New London, CT
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Your contributions help pay the fees associated with this list and help to keep it active. Please help by making a small contribution using PayPal at: https://www.paypal.com/paypalme/stumurray All contributions are greatly appreciated.
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Your contributions help pay the fees associated with this list and help to keep
it active. Please help by making a small contribution using PayPal at:
https://www.paypal.com/paypalme/stumurray All contributions are greatly
appreciated.
