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 Catalina/Capri 25/250 Sailor's Forums
 Catalina 25 Specific Forum
 Bilge Pump installation		  New Topic  Reply to Topic
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johnnyd
Deckhand

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USA
23 Posts
Initially Posted - 05/30/2023 :  18:56:44  Show Profile  Reply with Quote
I get a little water under the sink right under the drawers in the galley so I am installing a bilge pump in that area. I was wondering where most people drill for the thru-hull. I know it needs to be a least 8 inches about the water line. I want it much higher than that just to be safe. Please let me know if anybody has any suggestions.

Thanks,

John

JB
Navigator

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USA
110 Posts
Response Posted - 05/31/2023 :  08:10:22  Show Profile  Reply with Quote
Water under the sink should drain to the main bilge. Do you know the source of the water?
1988 C25 Wing Keel Std Rig Tohatsu 9.9 Tiller Steering and 2003 C250 Wing Keel Std Rig Inboard Diesel Wheel Steering
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hlprmnky
1st Mate

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USA
38 Posts
Response Posted - 05/31/2023 :  19:21:50  Show Profile  Reply with Quote
I have lots of photos documenting my bilge pump install accomplished over this past winter season but have not written up an article to go with them yet.
I put the through-hull adjacent to the one for the manual pump, on the transom, and added a vented loop attached to the transom by short screws. My pump is in the main bilge but if you need one and can fit it off-center under the drawers in the galley, the hose run would be much the same: through a new hole in the aft of the main bilge, then into the space below the quarter berth, up into the transom space, vented loop, through hull.
1985 C25 SR/FK/Trad. “Puffin III” - #5040
Sailing Lake Michigan out of Michigan City, IN
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Leon Sisson
Master Marine Consultant

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USA
1889 Posts
Response Posted - 06/02/2023 :  10:28:25  Show Profile  Visit Leon Sisson's Homepage  Reply with Quote
John,

It would help us answer your question more fully and accurately if you provide some additional details about your Catalina 25, such as the model year, type of keel, and interior layout.

That said, here's a link to a previous posting about bilge pump installation in a Catalina 25 which you may find helpful: 
"Bilge Pump"
— Leon Sisson
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Stinkpotter
Master Marine Consultant

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Djibouti
9013 Posts
Response Posted - 06/02/2023 :  12:15:51  Show Profile  Reply with Quote
Following on Leon (who didn't do this ), many here have set up a "signature" in their profile with their model, (C-25, C-250, or Capri 25), year, keel (SK, WK or FK for C-25s, WB or WK for 250s), rig (SR or TR), hull #, and sailing venue. Then it appears automatically under each post. Many questions can be answered more accurately knowing these things. Sometimes it even helps explain somebody's answer. There are good examples in two replies above.
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 06/02/2023 12:19:48
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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.