Westsail Owners Alliance - Thread: "Seacock Help"
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Thread: "Seacock Help"

12,268 posts on 2,444 threads   •   From Mar 07, 2004 - Jan 08, 2012

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Seacock Help


Jeff & Wendy Gower

Bud,

Thank you for the advice on moving the head sink drain. I think, for right now, I would like to keep the current seacock and save moving it for the next haulout.

With that in mind could you please help me in getting 3 small plugs and a complete 1 1/2" Groco seacock?

Thank you, hope you have a good holiday!

Jeff Gower
S/V Calypso
W32 #44


Bud Taplin
(Member)

Jeff,
Sorry, no can do. Groco has stopped making replacement cones for the seacocks, and they say they will not resume making any. I occasionally can find some good used ones, but do not have any at this time. I do have a number of seacock bodies, but they are all missing the cones, which I have sold to other customers.


Jeff & Wendy Gower

Bud,
Thank you for the info. It looks as if all good things must come to an end, and so is the case with trying to keep alive these old seacocks. Looking at the new Groco, online, they have a bronze body and stainless steel ball. Sounds like the making of electrolysis to me. Looks like I will need to change a least 4 of my current seacocks. The others still have plugs in good condition and I have one spare 1 ? plug left. Do you have a recommendation for what I should change to? Thank you again--Jeff


Rich Morpurgo
(Member)

we have the new grocos and haven't had any problem so far. they are about 6 years old now.

rich

W32 Jasmine #488


nick cherney (Guest)

I am getting ready to replace all the seacocks on my 42, and I am sure many of the plugs are still good (although the Bronze is in very poor shape). I can not say for sure when I will do this, but hopefully by the end of January. If anyone is interested in them, including you bud, you can have them for the cost of shipping.
-Nick


Jeff Holemo

Nick
Thanks for the offer! I would love to have two of the 1.5 inch cones and one of the 3/4 inch cones.
Jeff


Christie Rowe

Hi all,
We are also looking to replace our original seacocks very soon. Has anyone tried marelon seacocks? there is obvious price incentive over bronze but bronze is tried-and-true. There is the additional benefit of freedom from electrolysis fears. Any comments on risks associated with marelon? We have been wondering about impact resistance for seacocks in the bottom of cabinets. I've never thought twice about throwing heavy stuff in with a bronze seacock but I wonder if the marelon would hold up just as well.
Any comments appreciated,
Christie


Christie Rowe

Hi all,
We are also looking to replace our original seacocks very soon. Has anyone tried marelon seacocks? there is obvious price incentive over bronze but bronze is tried-and-true. There is the additional benefit of freedom from electrolysis fears. Any comments on risks associated with marelon? We have been wondering about impact resistance for seacocks in the bottom of cabinets. I've never thought twice about throwing heavy stuff in with a bronze seacock but I wonder if the marelon would hold up just as well.
Any comments appreciated,
Christie


Jeff Holemo

I was interested in the marelon seacocks so I read some articles on the internet about them. apparently if they are not maintained properly they freeze up just like the bronze with the exception their handles tend to break while you are trying to free them. then you are stuck with whatever position the seacock was in..open, shut partially open.
the flanges on the newer seacocks use a three hole pattern. the old grocos use two. the thru hulls are not bolted to the boat they are screwed into the seacock which is bolted to the boat. anyway the new seacocks wont work with the existing bolt holes.


Richard and Penny Beesley

We are also looking at replacing our seacocks. Does any know if the flange bolt holes on the new Groco sea cocks will match up with the existing thru hulls. Sure would hate to replace the thru hulls too.

Richard
W42 #111


Dave Kall
(Member)

I replaced all the seacock on our boat. All the below the w/l are the newer groco bronze and some of the above the water line (non critical I figure) are of the marlon. The marlon still need to be lubricated once / year so I didn't see and real advantage in switching to them below the w/l. As I put in all flush below the w/l I needed to plug and redrill all the new holes. The new seacocks have 3 bolts opposed the the original two.


Bud Taplin
(Member)

If anyone replaces their original Groco seacocks, I would gladly purchase the old cones if they are still useable. I get calls regularly for rubber cones, and do not have left at this time.


Jeff Matthiae

When I replaced my old Groco's with the new ones I first patched all the old holes and then redrilled for the new seacocks. Since I eliminated or relocated a few it wasn't that much extra work.

Yesterday I got the catalog from Spartan Marine Hardware. www.spartanmarine.com They make seacocks that look a lot like the old Groco's. You'd have to check with them on dimensions for the bolt holes. If they fit I wish I had found them a few years ago.

Jeff


Bud Taplin
(Member)

Per the post on "In The Yard" the Spartan seacocks have almost the same hole pattern as the Groco seacocks, so the conversion should be relatively easy.

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