35' Fountain water line..? need help
 

I am looking at purchasing a product called a barnacle barrier from Barnacle Barrier | Boat Bottom Growth Protection I think it will work well for what I am looking to do. The only question I have is how much of my boat is actually in the water..? They need a measurement from the front to the back of how much of the hull is actually in the water so that I can order the proper sized barnacle barrier. If anyone has their boat in the water and can give me a quick measurement that would be great.

I have not put mine in the water yet so that is why I am asking.

I am assuming also if anyone has a scum line on the bottom of their boat that would be the best way to measure..haha