Someone donated an old pontoon boat to the youth group in our church. It needs a good cleanup, but actually isn't in bad shape.<br /><br />I haven't messed around with pontoon boats, so need to ask a few questions.<br /><br />Our pontoons have some drilled holes in the tops, along the centerline (maybe 3 or 4 holes). I have no idea why they're there. <br /><br />1. Are the pontoons normally sealed capsule type things?<br /><br />2. Are pontoons normally vented for air expansion/contraction?<br /><br />3. Can I simply put patches over all the holes, or do I need to rig a vent pipe on each pontoon?<br /><br />4. The pontoons have low point drains on the bottoms. I assume this is to get rid of water that gets in. So far, I've left the drains open with the boat on the trailer. Any reason not to leave 'em open?
