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Old 11-22-2015, 12:21 PM   #1
City: Full Time Cruising East Coast
Country: USA
Vessel Name: Meridian
Vessel Model: Krogen-42
Join Date: Aug 2011
Posts: 580
identify seacock?

Can anyone identify the brand of seacock on 1986 Krogen?
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Old 11-22-2015, 01:11 PM   #2
Capt.Bill11's Avatar
City: Sarasota/Ft. Lauderdale
Country: USA
Join Date: Apr 2014
Posts: 4,536
Maybe some Chinese mystery brand. Whatever it is, it looks like it's time to replace it.

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Old 11-22-2015, 01:34 PM   #3
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City: Bethlehem, PA
Country: United States
Vessel Name: Lady Kay V
Vessel Model: Don't know yet.....
Join Date: Oct 2015
Posts: 399
That's a big hole to have underwater in your hull with nothing on it........I would replace that with something contemporary and, of course, a nice big backing plate.
Currently boatless but looking. Avatar is my first boat....Holland, 1965 ish.....
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Old 11-22-2015, 01:40 PM   #4
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City: Heartland
Country: USA
Vessel Name: Hi-D-Ho
Vessel Model: 1987 Krogen Manatee
Join Date: Feb 2012
Posts: 585
I agree, I had a similar mystery valve on our hot water heater discharge. Asians are great at copying things, we have a lot of stainless steel elbows on plumbing hoses that look kind of marginal until you figure our boat is 28 years old. But I agree it needs to go, big difference between sea cocks and a shower drain elbow.
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Old 11-22-2015, 03:03 PM   #5
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City: Miami Florida
Vessel Name: Possum
Vessel Model: Ellis 28
Join Date: Aug 2011
Posts: 2,858
Read this Replacing Thru-Hulls and Seacocks Photo Gallery by Compass Marine How To at

Then replace that.

Note that Groco took Maine Sails idea for a backing block, improved on it and now sells them ready made.
Parks Masterson
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Old 11-22-2015, 07:42 PM   #6
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City: Somewhere
Country: somewhere
Join Date: Oct 2007
Posts: 1,347
That is NOT a seacock, rather simply a through hull with a ball valve screwed onto it. They did at least, it appears, shorten the through hull to reduce leverage. It appears also that they added frp to the area around the through hull to thicken and strengthen the hull skin.

Still not a seacock. Replace it after reading the Compass Marine article as shown above.
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Old 11-24-2015, 01:17 AM   #7
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City: Whittier AK
Country: USA
Vessel Name: Apache II
Vessel Model: 1974 Donald Jones
Join Date: Oct 2007
Posts: 3,147
If that is indeed just a ball valve on a through hole it's a wonder it doesn't leak. most through holes are straight thread where your standard big box store ball valve is a tapered thread.

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