Hello everyone. This is my first posting. I've read many posts on the forum now and enjoy it very much. I recently decided to build a bass trap. After doing much reading on the forum I think I have a good understanding of what is required of them. I was fully planning to use 6.5" insulation compressed between "hog fence" when I thought of another potentially easier method. I searched the forum and can't find my method anywhere which makes me think that it could be ineffective. I want to describe my method on the forum before I begin to build a trap with my new method. Any advice would be helpful and appreciated. My plan is to use pipe insulation by Knauf with an inside diameter of 12" with a 2" wall. The insulation is rigid and it holds its form. The density of the insulation is about 4 PCF (this is not on Knauf's website). Both ends are to be capped off with 3/4" MDF and sealed with Liquid Nails. The whole thing will then be covered with polyester and bulap.