Drain Holes in Pontoons on a Pontoon Boat?

Question

My Father-in-law drilled holes in the bottom at the back of the pontoons on his boat. Last weekend we tried to take the boat out but it seemed to sit too low in the water. He put screws in the holes with rubber washers to plug the holes. If the holes are not air tight will air be forced out of the s***w holes when we put the boat in the water? When we unscrewed the screws it seemed to suck air in, is this possible? Any hints or knowledge shared would be greatly appreciated.

Thanks

Answer 1

Pontoons are not only airtight, but also pressurized.

Pull all the plugs and have a qualified technician pressurize the toons, and seal with aluminum welds.

Why in God's name did your Father in law do this?

Being as polite as I can be, this is one of the stupidest things I have ever heard. Please don't let him near the boat in the future.

Answer 2

when water starts getting into the pontoons there are leaks> If built with sealed compartments water get locked in between the cell> No water will be forced in> Pushing air out

So find the leaks & patch>