[SEMIJim]

I think the surveyor would have caught a taped-off or painted-over thru-hull. He's a pretty damn thorough guy. All the other stuff, zebra mussels (the captain responsible for those should be hung from the yardarm--literally), fish, plastic bags, who-knows-what, are possibilities. So how to you go-about checking and/or clearing the problem, short of donning a diving mask and getting under the boat or hauling her out?

Thanks,
Jim