Leaks !!

[Texascoastalfish]

Hey All,

Ive been out in my 75 20' SF about 6 times since re commissioning and all in all no problems, EXCEPT Im getting water in the bilge and having to pump it out every 30- 45 minutes ( maybe 2-3 gallons or so )I guess sinking would qualify as a PROBLEM !! The only thing I can think is the scuppers. they are original and I suspect water is leaking in from around them. Ive plugged them topside. What is the best way to isolate the problem and narrow it down ? re-sealing around the seaward ends? I don't see any breaches in the hull, but there is a place where it looks like the fiberglass is showing on the keel.
Thanks in Advance !
Dave E.