On Jun 24, 1:36*pm, Vic Smith wrote:
On Wed, 24 Jun 2009 08:13:22 -0700 (PDT), Frogwatch

wrote:

So, we do NOT have an answer. *Consider that if I build a boat I have
complete control over how to do it EXCEPT, I will not use a bracket.
I would consider deep transom cutouts on either side or large
scuppers.
Consider, my boat has filled about 9' of rainwater sitting in my yard
when I left the drain plug in. *With the small 750 gph pump, it took
over 10 minutes to pump it out. *If I had the largest capacity pump I
can get, 3500 gph, it would take nearly 1.5 minutes, a long time, so
some type of scupper seems necessary for the eventuality of getting
her nearly swamped.

Here's a link I posted about a year ago.
Watch the vid (it's not long) and listen to this guy.
I think he knows a lot about it.
I like the one-way transom "doors" solution.
There's a shot of them near the end of the vid.http://www.boattest.com/VLibrary/vPlay.aspx?ID=1216

--Vic

Again, Harry has stated that Parker offers the dam as an option. If
the cut out transom is so safe, why in hell does Parker offer it at
all? I'd think it would be litigious to offer an option that makes the
boat less safe.