[quote=CaptainScurvey]All the older boats are going thru these same type repairs.
I can add to help keep the inside of the hulls in good shape is to avoid condensation in every form.
If you have deck ports, leave them off and open until time to launch boat.
Add a screen to keep out the bugs/leaves.
The amont of rain that gets in thru the open ports is nothing compared to the condensation.
The rain will only go to the bottom, but condensation goes 360^, in all areas and layers of the hull.
I was amazed at how much water was absorbed into the foam cores, and the weight it added.
I put a small computer fan in one port, (mine has two ports in each hull) and let it run a few days.
When you look in the ports, you may be seeing the foam cores, as it looks like fiberglass too, since it has a layer on both sides.
Mine don't start with the foam until a few inches up the sides.
You now have a boat that is very interesting in its design.
Each of the many brands of cats from the 70s had some area of special performance.
Saw many Prindles as yours hit the beach at full speed, sailing far up onto the sand...really looked cool in the day.[/quote]
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