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 Catalina/Capri 25/250 Sailor's Forums
 Catalina 25 Specific Forum
 Cockpit Scupper Improvement		  New Topic  Topic Locked
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wanderer13
1st Mate

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USA
76 Posts
Initially Posted - 10/31/2015 :  15:49:23  Show Profile
Hello everyone,

After several seasons of scupper frustration, I decided to improve upon the original Catalina design of the cockpit drainage scuppers. I was having repeat trouble with leakage and with streaking on the transom from dirty drain water. I also found the issue of standing water in the recessed area directly in front of the scupper tubes to be questionable.

After much thought and research on this forum, I decided to remove the recessed area and install new scupper tubes that could be fitted vertically, yet still drain completely.

I decided to go with the Marine-East Cyclodial L-shaped through hull. It requires some minor cutting/modification to fit this application but it otherwise worked great.



https://www.marineeast.com/a_sch/sch_det.asp?cid=05&pid=05_03

The original bronze through hulls cut out pretty easily with a dremel. The hole needed to be widened to 1 7/8", which was accomplished easily with a deep-set hole saw. The insides of the holes were coated with unthickened epoxy.





To remove the recessed area, I ground out the area to bare fiberglass and built it back up with with layers of fiberglass roving and matting until it was about 1/8" from level with the deck. After I installed the through hulls, I faired it out with thickened epoxy.

Here's the final product:








The through hulls were bedded with Life Seal. It drains the cockpit faster than it can be filled with a hose. No more standing water in the cockpit - and no more drip lines down the aft end of my boat!

Critiques welcome!
1981 Catalina 25 FK/TR

LVjimmy
1st Mate

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26 Posts
Response Posted - 11/01/2015 :  10:21:18  Show Profile
Looks Great and good documentation of the modification.
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Stinkpotter
Master Marine Consultant

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Djibouti
9013 Posts
Response Posted - 11/01/2015 :  10:44:07  Show Profile
Dual exhausts! Now for some chrome tips... I thought about using those fittings to replace the brass tubes (that had cracked and were leaking) years ago, but then I couldn't find them any more.
Dave Bristle
Association "Port Captain" for Mystic/Stonington CT
PO of 1985 C-25 SR/FK #5032 Passage, USCG "sixpack" (expired),
Now on Eastern 27 $+!nkp*+ Sarge
Edited by - Stinkpotter on 11/01/2015 10:46:18
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sethp001
Mainsheet C-25 Tech Editor

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814 Posts
Response Posted - 11/01/2015 :  13:37:06  Show Profile
Good idea!


Seth
"Outlier" 1987 Catalina 25 SR/SK/Traditional Interior #5541
"Zoo" 1977 Morgan Out Island 30
"Nomad" 1980 Prindle 16
"Lost" 1988 Catalina Capri 14.2 (sold - yay!)
"Marine Tex 1" Unknown Origin POS 8' Fiberglass Dinghy
https://whichsailboat.com/2014/07/27/catalina-25-review/
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delliottg
Former Mainsheet C250 Tech Editor

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USA
4479 Posts
Response Posted - 11/01/2015 :  16:01:10  Show Profile  Visit delliottg's Homepage
Nicely done!
David
C-250 Mainsheet Editor


Sirius Lepak
1997 C-250 WK TR #271 --Seattle area Port Captain --
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zeil
Master Marine Consultant

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Canada
1297 Posts
Response Posted - 11/01/2015 :  23:13:17  Show Profile


Would it be worthwhile to prevent "oopsies", by adding screens?

Henk & Johanna
"Floating", a few off your "barnacles".
"Someday Lady" '95 C250WB #151 ('03 - 2016)
"Sea ya" 30ft Bayliner (04-2018 - 09-2018)
"Mariah" '96 C250WB #191 (05-2019 - 15-05-2023)
"Lady J" '00 C250WK #499 (05-2021 - 09-2022)
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Akenumber
Navigator

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USA
247 Posts
Response Posted - 11/05/2015 :  19:19:19  Show Profile
Has anyone replaced the original brass with new brass ones?
Ken
San Diego
84 C25 SR/FK 4116
The KRAKEN
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.