I drilled 60 holes into my keel
sucked the water
out of them. Filled the holes with acetone, let them drain and went back to them to remove excess moisture with the wet Vac, I 'm sorry for wording the advice wrong. No I would not suck pure acetone or any other Flammable liquid through a wet vac. Nor would I operate a wet vac inside the boat where I was useing Zylene or Acetone untill the boat had been well Ventillated. As for Acetone being contaminated were talking about the internal ballast of a boat here thats been saturated with years of dirty bilge water
seeping into it.I do agree with the fresh water to dry the fiberglass
out. A big question to ask is what was the substrate used around the Ballast. When you remove the bilge
sole it's quite shocking what's underneath there. Mine was filled with concrete that encased the lead. Nearly impossible to dry out. Some builders foamed in the aft sections of the bilge for extra floatation then glassed over it. In theses instances the foam must be removed. If I had the resources at the time I would have drilled 10 or 15 1" holes into the outer keel
untill I hit led. Rented two Torpedo Heaters and monitored my fiberglass
temp to stop it from Delaminating and let the moisture weep from the holes till she was dry It would have been a whole lot faster than how I dd it.