Hi Dave- Thanks for you message and I like your suggestion. I did not know there was a more flexible version of non-collapsing hose. I thought about using reinforced PVC and did not realize it might kink so you saved me from that mistake. Have you tried to get the softball hose off and on a barb yet? If it is easier to remove, that would solve my problem. Have you considered using grease to help? Dave
S/V Aries 1990 C&C 34+ New London, CT  > On Apr 10, 2025, at 3:39 PM, Dave S via CnC-List <cnc-list@cnc-list.com> > wrote: > > 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. > https://marinehose.com/product/series-110/<110-Softwall-Water-Cut-Away.jpg> > https://marinehose.com/product/series-110/ > > 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 >> >> On Thu, Apr 10, 2025 at 12:05 PM David Knecht via CnC-List >> <cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>> wrote: >>> 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 >>> > <pastedGraphic.tiff> >>> >>> 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. >> >> >> >> -- >> Joel >> >> 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. > 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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