Self draining cockpit skin fittings

[Restoration man]

Is there any need for self draining cockpit skin fittings to have a one way valve , the skin fitting is above the waterline by about 5” my boat has 2 normal skin fittings on them one is plastic and is of dubious quality and will be replaced with something else ,the other is bronze but needs removal and re re sealing they are huge and take 63mm , asap make though hull
Scupper with one way flap , but they are expensive and need a hose tale fitting on them , just wanted to know if need the one with one way flap as a survey requirement, or could I just stick with normal skin fitting and save myself the expense

 

[Stemar]

Jissel's drains were below the water level, and were fitted with bronze gate valves. Unfortunately, the innards were brass, so they no longer functioned and I couldn't get them off, so my compromise was to tie suitable wooden bungs to each, on the basis that it was unlikely that anything would happen to them when I'm not aboard. It was far more likely that they'd give up after getting thumped while I'm fossicking around in the lazarette. If your through hulls are 5" above the water line and the drains are even higher than that, I certainly wouldn't bother with any sort of valve.

I don't know anything about surveys. My boat was insured 3rd party as she was of little value, so I stayed away from such people.

 

[V1701]

What Stemar said. Reminds me of a Bowman 26 I had whose cockpit drains were literally about 1" above waterline, when I took her up river I had to close the seacocks or else end up with a few inches of water in the cockpit...

 

[[70521]]

My cockpit drains are above the water line and built into the structure of the vessel. No need for any skin fittings. Damn clever these French designers.

My last boat had cockpit drains that led out under the waterline, not a great idea and some bright spark thought that a valve was an even better idea. Fine if you want the cockpit to fill up with rain water.

 

[Stemar]

some bright spark thought that a valve was an even better idea. Fine if you want the cockpit to fill up with rain water.

That was one of the reasons I didn't try to change my valves as hard as I might have. I'm sure there are times when you'd want to close them but, apart from the pipe coming off - and how would that happen if they're fitted properly? - I can't think of any. I get that you might if water comes into the cockpit, but that never happened on Jissel. The drains on Jazzcat are little more than holes in the floor

 

[PlankWalker]

The hose to the skin fitting can allways rupture or leak, If you don't have a quick way of stopping water ingress - "catastrophe"

 

[Restoration man]

I suppose

The hose to the skin fitting can allways rupture or leak, If you don't have a quick way of stopping water ingress - "catastrophe"

I suppose you could say the same about any skin fittings connected to sink or other

 

[alan_d]

I suppose you could say the same about any skin fittings connected to sink or other

Yes.