2000 31 s.d. water leak in aft cabin..help!

[daileyinterest]

I have a water leak in the aft cabin on the starboard side. I have a feeling water is comming in the bilge vents on the radar arch during windy rain storms or when the boat is washed. The water seems to come from behind the back rest then runs onto the lower cushions. Does anyone else have this problem or know how i can fix this concern?
Thanks for your help!

 

[Vida]

I don't know if you have found the problem but there are two things I would check. If the A/C / shower sump tank pumping system (floor area) gets stuck it fill and water it will be seen within the area you have mentioned. I have also found that the first window above the galley also is a problem when the seal is worn. The water run down the back side and towards the rear of the cabin. The problem is because the main windshield angle is right above the window, when it rains or water is applied it runs directly at that specific window frame. Hope this helps.