Question: Sealing underneath sub-floors

[PC on the Bayou]

I asked this question in my rebuild thread ( '90 Maxum 2100SR Restoration & Conversion ) but though I may get a better response with a new thread specific to the subject.

Since the fuel tank and ski lockers in my project have sub-floors, I don't want water trapped under there to cause rot on the sub-floors and/or main bulkheads (one between the fuel tank locker and bilge and the other between the fuel tank locker and ski locker). I also don't want trash collecting under there (e.g., grime from the anchor locker).

1. Would it be advisable to route a drain pipe from the anchor locker and ski locker to the bilge and then completely seal under the sub-floors to not allow water under there or would there be too much risk of water getting trapped there?
2. Would it be more advisable to just let the ski locker and anchor locker to drain under the sub-floor and run through openings in the keel area of bulkheads to the bilge?

For additional consideration, my sub-floors and bulkheads will be thoroughly encapsulated.

 

[Scott Danforth]

I prefer having the area open underneath and making sure you dont get water in the bilge to begin with.

 

[Chris1956]

All wells must have a drain to let water out. My boat has the keel of the hull open, acting as a gutter to drain water from the front fishbox to the bilge.

A lot of fiberglass hulls do not actually have keels, but rely on the shape of the hull to provide the necessary strength. That statement is also true for strakes, of course the pour-in foam also helps support the hull, at the strakes.