Leak location
Leaks are the worst cuz often they're almost IMPOSSIBLE to find! Check all through deck fittings. Are any wet? Probably. That will most likely be your culprit. But don't stop checking if you find one. With that much water, you may be looking at more than one leak. Stanchions are prone to leaking cuz of the pressure put on them when folks grab them to climb aboard.To rebed any fittings, remove the fitting and drill the holes to double sized. Is the coring wet? If so, you'll have to allow it to dry out. Once dry, tape the undersides of the holes & fill them with straight epoxy. You may have to squirt a bunch in there cuz if the coring started to rot, it'll suck it up like a drowning man! So now all the holes are filled & dried. Redrill the holes the appopriate size, directly through the epoxy, and you won't have to worry about your coring anymore. Bed the fittings with 3M 4200 or Sikaflex. DO NOT USE 5200!!!! I cannot stress this enough cuz if you do, you'll be in a world of hurt the next time you need to rebed it! 5200 is an adhesive and will take part of your deck with it when you have to pry it off.Good luck!LaDonna