This is covered a few times in the archives. Replace the plywood with Starboard or PVC. Be sure to use water approved sealant. Here's the instructions from PSC. - Correction. I can't upload. It's here:
Picasa Web Albums - Stephen - Talisman
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Steve
PSC 31 #84
Talisman
Last edited by stevemac00; 07-16-2009 at 05:08 PM.
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