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Product Details
These traditional Garboard Drain Plugs are constructed of cast bronze flanges and 1/2 inch brass plug. Garboard plugs are screw in style with #8 screw threads. Flange OD is 2 inches, pipe size is 1/2 inch. Spare plugs also available, DP1 standard square drive head and DP2 has a stainless steel pin for easy tightening.
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1 - 6 of 6 Questions
Q: null I'm thinking this plug used below the waterline will not need sealant on tape on the threads. am I correct ? Just snugging it up by itself will keep water out. ? Of course I'll put sealant around the flange and screws.
3 years ago8 Answers
A: Typically thread sealant is not used on this typeof plug.
3 years agoHelpful?
Q: null What is the best material for the main boat drain plug? I see 316 Stainless, Brass and Bronze. I also see a bronze flange with brass plug. Someone said not to use stainless because the corrosive salt water would seek a soffer metal to attack. I kind of like the idea of the boat plug not corroding. Thoughts?
6 years ago1 Answer
A: Softness is not really the issue below the waterline unless you are worried about impacts. This is always an interesting subject with a lot of different theories. Bronze and plastic are probably the most commonly sold, and stainless 316 should not be an issue in salt water, and is more cathodic than bronze (safer on the galvanic scale)--think of swim platform supports or other hardware at or near the waterline. Forester's Marelon garboards do not have any galvanic issues, yet still have comparable strength for underwater standards.
6 years agoHelpful?
Q: null Is this what I would use to connect my Porta pot to my over the water line thru hull for overboard discharge? The inside diameter of the the thru hull is 2"" and is threaded. The discharge flex pipe from the Porta pot is 1 1/2"". If this is not the correct fitting what should I get?
6 years ago1 Answer
A: I do not believe this is what you want. This is only a 1/2"" threaded plug and its the outer diameter that is 2"". We recommend looking into local regulations before piecing this together, or asking your local harbormaster but generally you would want to attach a seacock or valve to the thru-hull, then plumb your porta potty to the seacock/valve. Many states mandate that the valve can be locked or zip-tied in the closed position as well when coming from an MSD. Please feel free to call one of our techs to help you find the right parts for your setup at (800) 497-0010.
6 years agoHelpful?
Q: null Does this have another part that attaches to the outside of the hull? & sandwiches the hull between the 2 flanges.
9 years ago5 Answers
A: This part is a external mount. I just applied some caulk on backside and fastened to transom with screws
9 years agoHelpful?
Q: null what type of screw should be used for installating this below the waterline?
12 years ago3 Answers
A: Bronze
12 years agoHelpful?
Q: null instruction to install on aluminum boat ?
13 years ago1 Answer
A: I'm a wooden boat builder so I'm guessing a little. Rivet/bolt it in with a good treatment of 3M 5200
13 years agoHelpful?