Nothing can really be done about this... just suck it up...and deal... install bilge pumps, preferably two, a small maintenance one as low as possible and a larger dewatering one a bit higher up. Use separate through hulls and DO NOT USE CHECK VALVES.We recently purchased a C&C34+. I've found several leaks as well. From your description I would first replace the Mast Boot and seal the perimeter of the Mast Collar where it meets the deck with 4200. We found a lot of water coming in at both locations and running down the head liner on either side of the boat.
For the mast boot I used two rolls of Rubbaweld® Mast Boot Tape. I plan to put a cover on this for protection from abrasion. Take the time to clean the collar well and make sure it drains through the small drain holes. Ours was gunked up with silicone. I also had to seal the mast's sail lug groove under the Boom Vang. It's bone dry now. However I'm still chasing leaks in other areas.
Other Water Leaks:
Interior of the Mast
These all need to be taken off and properly re-bedded. While you're doing it, pot the fastener holes and seal any areas of exposed core with thickened epoxy to prevent water from delaminating the deck or cabintop.Both Chainplates
Starboard Aft Port Light
Quarter Berth Hatch
Engine Intake Through-Hull
PSS Leakless Stuffing Box
Again, each of these needs to be addressed.Wire runs under the Pedistal
Radar Post Mount
Port Water Tank Hose Fitting
Propane Locker Drain - this disasterous set up warrants ints own thread
One of these should be set for intake (companionway) and the other for exhaust (forward hatch).With all of this moisture in the boat and nearly no ventilation we've got some serious work ahead. Obviously addressing the leaks is first priority. I am also working to address the ventilation by doing the following:
- Install Two Nicro Solar Vents (Forward Hatch & Companionway)
- Install Two Clam Vents in Cockpit Lockers Under Helmsman Seat
- Install Two Dorades and Cowl Vents On Cabin Top
(We've moved the MainSheet to the Cockpit)
Any Suggestions or experience in this area is appreciated.