racclarkson@gmail.com
Legendary Member
- Joined
- Aug 6, 2015
- Messages
- 3,722
- Status
- OWNER - I own a Hatteras Yacht
- Hatteras Model
- 55' CONV -Series I (1979 - 1988)
I really hate the way Hatteras drained the port side L bench and port side flybridge deck. I've read and posted on this issue with other 55C owners in the past. Basically, the port side of the flybridge and the L bench drain under the bench. Water then backs up in front of the helm. The drains are also easily clogged. In the past, I've passed copper from the back bench corner through the helm and off the aft port side of the FB. But, washdowns or rain with the glass up just makes a mess. There's no way, with all that dampness, to take advantage of that huge space.
So....I've dealt with it. I opened up and beveled the single drain hole on top of the L bench. There, I installed a short stub of heavily flared 1/2" copper pipe.

Of course, the area is inaccessible, so a 7" deck plate was enough to fix that. If you've ever wondered about the stoutness of the flybridge seating on a Hatt is, wonder no more.
From there I ran 1/2" copper and hose against the back of the bench as shown.

Now, a 1/2" thru hull carries the water out on the starboard side of the helm where gravity finishes the job.

Back under the L bench, I closed off the unneeded holes in the deck drain pipe. Those holes allowed deck water to spill out under the bench until it eventually drained out. Since the holes were just slightly above the deck, any boat out of level left some casual water. Now, port side deck water drains directly overboard thru the OEM pipe. The huge storage space under the L bench (seats unto seven) is now useful clean stowage.
So....I've dealt with it. I opened up and beveled the single drain hole on top of the L bench. There, I installed a short stub of heavily flared 1/2" copper pipe.

Of course, the area is inaccessible, so a 7" deck plate was enough to fix that. If you've ever wondered about the stoutness of the flybridge seating on a Hatt is, wonder no more.
From there I ran 1/2" copper and hose against the back of the bench as shown.

Now, a 1/2" thru hull carries the water out on the starboard side of the helm where gravity finishes the job.

Back under the L bench, I closed off the unneeded holes in the deck drain pipe. Those holes allowed deck water to spill out under the bench until it eventually drained out. Since the holes were just slightly above the deck, any boat out of level left some casual water. Now, port side deck water drains directly overboard thru the OEM pipe. The huge storage space under the L bench (seats unto seven) is now useful clean stowage.