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Foredeck drain arrangement

PostPosted: Mon Jun 10, 2019 5:46 pm
by Malcbuchanan
My foredeck drains use flexible wire braided pipework to connect from the deck fitting to the hull side fittings These block fairly regularly as I thing the through hole size is only 10mm.
Does anyone have an alternative arrangement - preferably of a larger bore size...I guess garden hose and jubilee clips could be used !!
many thanks Malcolm

Re: Foredeck drain arrangement

PostPosted: Tue Jun 11, 2019 6:28 am
by erbster
Hi Malcolm. Yes, this is s design weakness of the boat. They do block easily, but are easily replaced (the rubber interior pipe perishes). Many complain about these, but few replace with a different arrangement. One boat I know had larger bore copper pipe fitted, but this is a non trivial task. I put bings in mine when the boat is on the trailer to prevent pine needles etc going in. I also find blowing the bottom end of the pipe usually pushes out trapped objects - the obstruction seems to be in the fitting at the top end. I guess you could try the arrangement you suggest; I don’t know of anyone else who has tried that.


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Re: Foredeck drain arrangement

PostPosted: Thu Jun 13, 2019 12:19 pm
by zimp
Zimp (SN 004, a SA build Capecutter) has drains with a diameter of about 1 inch. They made from tubes. These tubes are laminated to the hull. But it seems to me quite a job to install 1 inch tubes instead of the 10mm hoses. Zimp sleeps close to trees so sometimes I have to clean the drains by putting the end of a mooring rope through the drains.

Re: Foredeck drain arrangement

PostPosted: Thu Jun 13, 2019 5:20 pm
by erbster
Evidently the deck moulding was changed over time- certainly all the Honnor boats (except one) have a fitting in a slightly different location and the narrow rubber hoses. I wish my drains were 1” and one day maybe I’ll bend some 15mm pipe


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Re: Foredeck drain arrangement

PostPosted: Fri Jun 14, 2019 6:51 pm
by Dennis
It only takes about one sycamore seed plus two pine needles to block mine. :(

Fortunately this only usually happens when the boat is ashore, when it is on it's mooring, or sailing it rarely gets blocked.

I can confirm that HM used standard plumbing flexible tap connectors for this purpose, they are nominally 15mm, but in reality have a bore of about 10mm dia.

A much larger drain (called "scuppers" on ships) would be great, especially when sailing into a heavy sea.

Re: Foredeck drain arrangement

PostPosted: Sat Jun 15, 2019 12:32 am
by erbster
I ha e rubber bungs for my drains when Aurora is ashore.


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Re: Foredeck drain arrangement

PostPosted: Thu Jun 20, 2019 9:25 pm
by Malcbuchanan
Many thanks to all for all the replies...I think I will start by replacing the existing flexi pipes like for like, ensuring no kinks, before considering anything more drastic. Really useful to know that there is no easy alternative - nothing worse than struggling with something and then finding out afterwards the easy fix !!!
Regards to all - Malcolm