Hi Mairi
I had similar leaks along the toerail, deck fittings, wooden grab rails on the cabin roof and where the chain plates pass through the deck, also the windows seal to the cabin side can leak if the wind is strong enough.
As a temporary cure to the toerail and windows I clean area with alcohol and run a bead of mastic along the edge. The deck fittings can be re-bedded and the chain plates can dig out the old mastic, clean and repack with fresh mastic. I normally use sikaflex on the deck fittings and silicon on the acrylic windows.
Mike Edwards
Seal 28 "Aztec"
Mike Edwards
Seal 28 "Aztec"