Silver Heels
Petty Officer 2nd Class
- Joined
- Apr 28, 2008
- Messages
- 125
While I'm redoing the transom on my 20' aluminum boat, I would like to go ahead and replace some through hulls. There are 3, one for the drain, and two for the livewell. The drain is not the plastic replacable type. The livewell through hulls, one 3/4 and one 1 1/8, are though. West Marine sells some that are white plastic and about $15 for the larger size. My local hardware store sells some white plastic "Attwood" models for about six bucks. The package does say they are not for below the waterline applications. Maybe a dumb question, but is Attwood just covering their butts and their through hull is just fine for that purpose, or do I have to spend three times as much to get an identical looking model that doesn't carry that warning? Also, do you simply goop some 4200 or 5200 around the hole to bed the through hull before tightening it down, or is there more of an art to it? Thanks for your replies.