Replacing the fitting in the hull

[Kwaynem]

I'm replacing the plastic fitting that is on the side of the boat that the livewell drain hose connects to. Do I need to put silicone or something around that to keep it from leaking?

 

[fhhuber]

Sounds like a pump-out fitting, possibly above the rub rail? Good idea to use a marine sealant. It certainly won't hurt.

Generally these penetrate the hull in a location with sprayed in flotation foam.

Its more important to ensure the hose is connected with no leak because that would constantly run water over the foam.

The splash getting up to the fitting would mostly run off and you'd have very little water intrusion even without sealant.

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f its down near the boat's drain plug, 100% use sealant.

 

[Kwaynem]

It's for the front live well the part didn't come with anything just worried it will leak

 

[fhhuber]

These fittings don't ever leak much if installed correctly.

As I noted... its never a bad idea to add some sealant. But the sealant is to stop drops per hour. Proper installation is to prevent gallons per minute.

 

[fishrdan]

Install it with a bead of 3M 4200 sealant, clean up the excess squeezed out sealant with paint thinner, done....

I wouldn't use silicone, unless that's all you have and you are not going to go out and get the proper sealant.

 

[s.hadley81]

I agree with fishrdan use 3M 4200! Then you'll be guaranteed a good seal that last a lot longer than silicone. It's definitely worth the extra coin!

 

[Scott Danforth]

every boat owner should have 3M 4200, 3M 5200, Tef-gel, permatex #3, and marine grease next to their tool box. Silicone shouldnt be used on boats

I agree, use 4200 fast dry, install and go boating

 

[Kwaynem]

Done thanks all

 

[Blind Date]

I replaced all the plastic thru-hulls on my SeaRay last year with SS ones. They were all above the water line. I would not use an adhesive sealant like 3M 4200. Just use some silicon which will last forever. And if you ever have to remove the fitting in the future you'll be glad you didn't use 3M 4200.

Edit: Whoops I see your already done. Hopefully you just used silicon and no adhesives.

 

[dingbat]

Silicone shouldnt be used on boats

My manufacturer recommends Almond colored, GE ll silicon to chalk the seams on my deck panels. PIA removing as is. Can't imagine using 4200 on them.

All my deck hardware is bed in silicon as well.

 

[Scott Danforth]

Deck panels do not need to be water tight - hull fittings do

If you need to remove 4200 or 5200, you can always use anti-bond 2015.