Re: Sea Chest


That would certainly suck air into the strainer because the suction from various pumps would overcome a one-way valve. All of the one-way valves I am familiar with for water do not work well for air.

I am not sure what Mark is talking about because the sea chest contains the strainer.


CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
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On Fri, Apr 9, 2021 at 6:19 PM Sv Garulfo <svgarulfo@...> wrote:
hi Mark,

Can you expand on that idea? I don’t really see where that valve would be?

What do you think of a hose out of the Vetus lid, up over the water line and outputting in the cockpit drain (which is very nearby on the A54), with a one way valve to let accumulated air out into the cockpit drain but preventing any suction of air through there? 
Raw water consumers would pump sea water through the chest and strainer and any accumulated air (up to the waterline) would rejoin the atmosphere by simple gravity. 
Arguably, the rolling motion of the boat would continuously fill that one-way hose with sea water until it overflows in the drain. Also, removing the vetus lid for maintenance of he sea chest would be messier, having to deal with the water left in the hose. Maybe a Gardena type adapter to easily remove the hose from the lid even if it’s full. The same fitting could be used to feed the system fresh water for wintering like Arno did.

Any views ?


Fair winds

Huahine, French Polynesia 

On Sun, 29 Nov 2020 at 11:28, Mark Erdos <mcerdos@...> wrote:

The most effective way I have found to prevent air accumulation in the strainer it to install a one-way flow valve between the strainer and the sea-chest.



With best regards,





Sailing Vessel - Cream Puff - SM2K - #275

Currently cruising - Tahiti, French Polynesia



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