I recently purchased a used sunfish and during the spring my son and his friend turned it over a few times. As soon as it turned over it really started taking on water in the hull so after sealing a few crackes I figured that the hull was probably pretty wet and decided to put in some inspection ports to dry it out some. Well my first cut did not go so well. I read the document in the KB and others out there but none prepared me for when I cut my nice round circle at the front of the boat (3 inches aft of the front handle) and the entire circle was foam block (see picture). Not sure how I am going to increase circulation when there is a big foam block in the way?? I wrongly assumed that the foam blocks where at the bottom of the boat in the figures not glued to the top of the hull.... This is the same placement as in the picture in the KB so figured someone would have some advice.. Am I just supposed to rip out all the foam? that seems like a bad idea. This also turned out to be a bad location as there is quite a bit of crown to the midline of the boat that made sealing the port quite difficult.