Repairing Hull Sockets

My Hobie 17 has cracks in the hulll sockets that recieve the wing tubes. What's the best way to fix them?

Do you have deck ports? If not, installing some near the holes will give you enough room to seal the tubes from the inside.

My boat doesn't have the inspection ports. What size ports should I install?

I have 5" ports in mine. You could probably get away with 6" ports, but you don't want to go any smaller or else you wont have enough space to work through.

Thanks, I'll see if I can get a pair. Only the stern sockets seem to be damaged.