Barbara,

On our 33 MK2, the cockpit drain lines are cross routed to through hulls
(port/starboard hull beneath cockpit.
This way when the boat is heeled over water can not come up the drain line.

Regards,
Lee
Kookaburra
1985 33 MK2
Kenosha, WI


> Date: Wed, 2 Aug 2017 07:48:46 -0400
> From: David Paine <paineda...@gmail.com>
> To: cnc-list@cnc-list.com
> Subject: Re: Stus-List Re-routing cockpit drain lines
>
>
> Hi Barbara,
>
> I have a 33-1 with the same configuration.  I don't see any need to change
> it as It works well for draining small amounts of water.   However, when
> you need to empty the cockpit in a hurry, say when its been filled after
> being pooped by a breaking wave, you need more drain cross-section.  I
> added a 2" (or maybe its 1.5") drain from the cockpit aft bulkhead (as
> close to the cockpit floor as possible) angled down slightly to the
> transom.   I can tell you that the last time I was up to my knees in water,
> I was pleased to have the extra drainage!
>
> Best,
>
> David
>
>
>
> On Tue, Aug 1, 2017 at 6:37 PM, Barbara L. Hickson via CnC-List <
> cnc-list@cnc-list.com> wrote:
>
> > On my '76 33-1, the cockpit drains into thru hulls with inline ball
> valves
> > in a y configuration below the cockpit floor and then straight down thru
> > the hull, well beneath the waterline. It appears from line drawings that
> > this is the only practical configuration. If the drains were rerouted to
> > either side of the hull or to the stern above the waterline, there would
> a)
> > not be enough slope, and b) the outlets would allow water back into the
> > cockpit when heeling or with a following wave.
> > Has anyone done this, or am I correct in my assessment?  Has anyone used
> > marelon replacement flanged seacocks?  Their video says they are to be
> > screwed only to a backing plate and not screwed all the way thru the
> hull.
> > Seems like a good solution if it works.
> > Thx for any input.
> > Barbara Hickson
> > "Flight Risk" '76 33-1
> > Charleston, SC
>
>
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