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S&S Swan General - Swan 44 cockpit drains
21 March 2022 - 06:48
#1
Join Date: 21 April 2021
Posts: 18

Swan 44 cockpit drains

Dear all,

I am in the process of changing the rubber hoses connecting the cockpit drains to the through-hulls (above static water level) on 44/011.

The current arrangement is such that because the rubber hose is short and stiff, the cockpit drains need to be removed to install the new lenght of pipe.

The cockpit drains are made out of copper with a stainless steel flange brazed on the top (see photos). They were glassed to the cockpit floor from below and had no sealer between the flange and the cockpit floor. in fact there was a small leak as the drains had come a little loose, possibly due to corrosion of the copper over 49 years.

I am considering if i should just re-install the original drains with new hoses and glass them in again as they were or if i should manufacture new drains which fit more like a conventional through-hull and include a threaded part with a nut to clamp to the cockpit floor.

Does anyone have experience and can offer any suggestions?

Thanks in advance.

regards,

dav

22 March 2022 - 11:16
#2
Join Date: 02 January 2008
Posts: 1547

Dear dav

It is suggested that you make the new drains of GRP, with the thickness the same as the bottom.
Make a bigger inlet radius at the upper end to improve the flow
The top flanges with cross bars could be used in harbor and in nice weather.
Kind regards
Lars

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