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Author Topic:   98 235 Conquest leaking scuppers
jseyler posted 04-25-2010 02:00 PM ET (US)   Profile for jseyler   Send Email to jseyler  
built-in live fish well in the floor continues to fill back up with water. It seems the water is coming back into the fish holding area from the "scupper" not sealing properly. Make sense? If so I wonder if these can be ordered through BW.

I am also taking in water (slowly) into the bilge area and am not comfortable leaving the boat in the water unattended.

Bella con23 posted 04-25-2010 05:42 PM ET (US)     Profile for Bella con23  Send Email to Bella con23     
This is forth season with my 1999 "23" Conquest. The observations I've made pertaining to water leakage is that rain water does leak into the fish box.

Once the water is allowed to accumulate in the fish box it has a tendency to leak out of the screwed on plastic "Whaler Board" on the rear of the box.

The fish box is one molded piece with the exception of the rear piece where the pump out screen is located.

I have not taken the time to repair my seam so I can't offer any advice with that.

I can tell you that I once left the hull drain plug out overnight in it's slip and the boat filled with water to about a half inch below the top of the batteries. No damage done.

Of coarse you may have twin outboards dragging the stern down to the point that water is backing up through the scuppers.

In this case you would have water flow backwards through the fish box pump and strainer into the fish box.
From there it could leak out the seam in the rear of the fish box and into the bilge area.

tom976 posted 04-26-2010 02:28 PM ET (US)     Profile for tom976  Send Email to tom976     
Interesting observation. I noticed the problem last year myself. I will be taking out the old caulk they used and resealing. I was out in the ocean and noticed my bilge pump turning on and off every so often. Normally that never happens so I was curious. (and of course I was using the fish well) Took a close look and the sealant was shot.

It appears that whatever sealant they used sort of went to crap over 12 years.... DOH!


ra6216 posted 05-08-2010 04:24 PM ET (US)     Profile for ra6216  Send Email to ra6216     
Im having the same problem with my 2000 23 conquest,water leaking from fish box into bilge,but Im having trouble geting to the fitting to re seal. any suggestions?
Bella con23 posted 05-10-2010 12:22 PM ET (US)     Profile for Bella con23  Send Email to Bella con23     
I'm thinking about using a Dremmel with a cone shaped tip to hone out the existing sealant between the back plate and the hold itself.

I will then reseal it with a good quality silicone so it has a little flex between the back plate and the hold.

tom976 posted 05-13-2010 04:13 PM ET (US)     Profile for tom976  Send Email to tom976     
I stopped over by home depot and got a silicone remover to help remove it. Well from what I noticed is that whatever stuff they used didnt stick to the wonder (opps whaler) boat plastic too well at all. It seemed to LOVE the fiberglass/gelcoat. I am not sure if I want to use silicone in there again.

The remover worked ok. It helped with loosening it up a bit but still what a pain in the ***. The only highlight was that the remover smelled like lemons and didn't do any damage to the gelcoat around there. My scrapping with razors and paint scrapers did that. :)


Newps23 posted 05-17-2010 10:18 AM ET (US)     Profile for Newps23  Send Email to Newps23     
We have had the same continual proplem on our 01 23' outrage. We found that the bilge was filling with water from multiple areas. The fishboxes were definitely a culprit and needed to be resealed. In addition we had two cracked hoses that connect the fish boxes with the macerator which allowed water to enter the bilge. We also found that once the boxes were filled, the boat sat low enough in the water that the scuppers would allow water back in the boat. We've had the batteries under water twice, and finally found the boat so filled with water that the top of the transom was level with the water line. I was convinced that a thru hull had failed and we were missing it, but the bottom line is it was a series of failures that could have easily been avoided with better maintenance. The bottom line is the boat is almost 10 years old and we should have done what we finally did 2 years ago..... The solution in my mind, is replace all of the hoses in the bilge, add check valves/balls to the scuppers, add a 2nd bilge pump with a separate float switch wired directly to the house battery (the fuse kept blowing on the first bilge preventing it from keeping up with the water flow), and reseal the fishboxes (and anywhere else where water can penetrate through the deck and into the bilge area. We spent thousands of dollars fixing the problem that could have easily been addressed for a few hundred.
Bella con23 posted 05-17-2010 04:13 PM ET (US)     Profile for Bella con23  Send Email to Bella con23     
Wow Newps23 - what do you have hanging off the transom twin 225? I've left the plug out of the transom overnight and never got the the tops of the batteries wet.

I can't imagine having enough weight to push the stern down to the top of the transom.

Newps23 posted 05-19-2010 10:03 PM ET (US)     Profile for Newps23  Send Email to Newps23     
Bella: It's just a single 275 verado. it's not the plug out of the transom but the bilges filling up with hundreds of gallons of water. With a 166 gallons of fuel, a full water tank, and the weight of the engine, a full bilge really weights down the transom. the problem is we leave the boat in the water through the winter (southern california) and we aren't able to check on the boat very frequently. We have on board charger connected to shore power and always figured the bilge pump could keep up with whatever happened. We just hit a string of bad luck between bad float switches, blown fuses, etc.
Newps23 posted 05-19-2010 10:10 PM ET (US)     Profile for Newps23  Send Email to Newps23     
bella: To clarify water was coming over the "splash well" by the motor itself, the entire transom of the boat was not under water.
Bella con23 posted 05-20-2010 06:17 AM ET (US)     Profile for Bella con23  Send Email to Bella con23     
Newps23- Thanks, now I've got it. The 275 plus 166 gal. of fuel is a lot of weight.
njteach posted 08-24-2010 10:15 AM ET (US)     Profile for njteach  Send Email to njteach     
Bella has it right, I saw first hand the water would not reach the tops of the batteries. The drain plug through-hull in the fishbox was bad, the water came into the fishbox and there was a tear in the caulking inside the fish box, when you looked in the box you could not see the water coming in (beacuse it was only an inch or two of water and it was leaking through the caulk to the bildge.)

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