[C320-list] AC through-hull

[Descher, Chris]

Thanks for all the help.  I got this done over the weekend.  It was installed a foot or so behind the raw water through hull, but it's still easily accessible.  That was as far forward as I could get it without going through the uneven surface of the built-up glass for the prop shaft.  Cutting that hole was one of the more unnerving things I've done recently.

Chris Descher


-----Original Message-----
From: C320-list [mailto:c320-list-bounces at lists.catalina320.com] On Behalf Of Warren Updike
Sent: Tuesday, February 02, 2016 11:42 AM
To: C320-List at Catalina320.com
Subject: Re: [C320-list] AC through-hull

Chris, we installed AC in our #62 at same time as a friend #647, and there were differences between the installations. Both were in the port locker.
The differences were small but quite noticeable. In ours, there was just not enough room in the shaft alley to put the thru-hull. We located in the stb space under the bunk: we have no water tank there. The pump we put in the shaft alley behind the raw water thru-hull. On #647, the thru-hull was put in the shaft alley as there was slightly more room there. The hull is quite thick all through this area especially along the center line. 

On the basis that closing all thru-hulls upon closing the boat, placing it behind the raw water inlet can be a pain to reach depending on how the bunk is made-up. 

A thru-hull will also be needed for the cooling water discharge. This should be as close to the water line as feasible. We put ours in line with and a few inches aft of the exhaust thru-hull. I don't see the value of prospectively installing the inlet thru-hull if not, similarly, installing the outlet.

Warren and Pattie Updike
1994 C320 "Warr de Mar" #62
Middle River, Chesapeake Bay

-----Original Message-----
From: Descher, Chris [mailto:cdescher at cedtulsa.com]
Sent: Wednesday, January 27, 2016 11:30 AM
To: C320-List at Catalina320.com
Subject: [C320-list] AC through-hull

Folks, I've got #500.  She doesn't presently have AC, but she is presently out of the water getting the bottom done.  I'm thinking of putting in a dedicated through-hull just in case I, or the next owner, want to install it.

Any thoughts on the best place to put one if all options are available?

Chris Descher

Thanks for all the help on locating the thru hull.  I'm going to put it behind the raw water intake.  Does anyone have any guess as to the hull thickness there?  I need to get a wholesaw.

Chris Descher