starboard aft water below rudder, R25 2008

[jimbeam]

When it rains moderate to hard I have water in the bilge coming from the aft starboard drain area below the rudder,
I found water even further starboard behind the locker in the extreme starboard aft section. A drain hole allows water into the aft section below the rudder piston area and then drains thru a hole to the bilge. For the life of me I cannot figure out where the water is coming in. The drain hoses are tight and not leaking, fittings on the stern like scuppers are tight. Maybe it's getting in further forward a bit on the starboard side. Anyone have any ideas where the water is coming from? It is a moderately significant amount, it activates the bilge pump. I was even thinking the drain plug but it seems only when it rains.
Frustrated
Jim

 

[Chimo]

Very frustrating. Is this new?

 

[baz]

I had a 2010 R25 Classic and had this issue at times. I solved it by placing my boat stern in a covered slip. The issue seemed to me to be an insufficient draining rate from the locker scuppers due to heavy rain fall. I did remove the drip hole grills as crud would build up on the grill. However, even with doing that rain water would still seem to overflow the scuppers and make its way to the hull in starboard locker and then run back to the seep hole and into the bilge as you've described.

IMO, the only way to avoid the issue on the R25 in particular, is to cover the cockpit to stop rain water from falling into the cockpit.

 

[Favunclerich]

My 2008 R-25 is kept outside and does not have this problem.

While I haven't disposed of the grate at the aft outboard end of the starboard locker like Barry, I do clean it frequently, along with the other three grates.

In addition, I have replaced the weatherstripping on the underside of the locker cover, making sure that the new material is properly positioned to seal the edges of the drain channel around the perimeter of the opening.

 

[jimbeam]

Thanks for the response. I have not replaced the locker and engine gaskets but that sounds like a good option. I did silicone them but probably still need to be replaced. I will try it and see.
Jim

 

[BeaconBluff]

Try checking for a hole in the scupper hoses.

Beacon Bluff