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Old 06-10-2021, 04:07 PM   #21
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City: Great Lakes
Vessel Name: Escapade
Vessel Model: 50` US Navy Utility trawler conversion
Join Date: Nov 2015
Posts: 1,066
Quote:
Originally Posted by Solly View Post
This is just unbelievable !!!
Pulled ours ( 85 Mk III ) out yesterday because we had a leak around the drain. When the yard tried to remove the drain to re-bed it, it disintegrated ! I was thinking stray current corrosion or something. Maybe Mainship used a cheap garboard drain, got a bad batch, or just 36 years old..... ??
I'm replacing ours too. Should of had them glass it closed.

Check your Mainship drains if you have one !!
I almost lost the whole fitting after grinding around on a rock for a while. I asked the glass guys to close it off but they were reluctant due to oil contamination and lack of access on the inside.

http://boatingadventures.ca/2018/09/19/aground-part-4/
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Old 06-10-2021, 04:37 PM   #22
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City: Kilmarnock VA
Vessel Name: YellowBird
Vessel Model: 1978 Mainship 34
Join Date: Apr 2016
Posts: 885
I'm assuming the drain in the keel of ours is original but maybe it's been replaced. It gets pulled every time we're on the hard. I'll scrutinize it a little closer when we haul to make sure it's sturdy but I can guarantee you one thing... I'll always have one in the bottom of any boat I own! It's nice to know that if any water gets in, it'll run back out while it's on land. It's one less thing to worry about. I can shut everything off or even remove the batteries and just walk away!
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Old 06-10-2021, 05:09 PM   #23
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City: Owings, Md
Vessel Name: Graceland
Vessel Model: Mainship 34 MK1
Join Date: Jan 2016
Posts: 495
I replaced the drain on my father's MK3 with a T handle Sea Dog 3/4", the bronze casting was much more substantial than the original. I tried to order another for my boat and the vendor didn't have one, had to cancel my order so I got a Perko unit which looks identical from Defender (I love them even after my credit card data was hacked during their recent data breach).
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