Re: Plunger
Continuing on with what Dale wrote, I also use a plunger to clean the drain hoses. I have found that if you hold a wet towel over one of the drains and plunge the other one, it will pull out the debris from beneath the "T". Then, you should move the towel to the other drain and do the same thing. Eventually the drains will clear, and water will pour out from beneath the boat.
I would also like to mention that I once had a leak from one of the "volcanos" under the cockpit floor. The volcanos are the funnels that the water collects in before it goes into the 2 hoses. The volcanos lead to copper pipes that the hoses connect onto. The hole that was sawn in the liner, wore through the copper pipe due to the up and down movement of the cockpit floor, and the glass fibers in the liner. (I know that this is hard to believe, but this is what I found after a ton of investigation). Anyhow, I repaired the copper pipe and the volcano, enlarged the hole in the liner, and replaced the hoses, and the through hull fitting, and now the inside of my bilge is completely dry.
I'm glad that you have gotten so much advice from everyone on this issue. Leaks can be frustrating, but with time you can solve the problem and make your bilge dry again.
I hope this helps, Aldo