By placing duct seal in a breaker box you can make a silent pellt trap. (silent meaning no pellet hitting the trap sound) Total cost was about $40 breaker box was $18 and Duct Seal is $1.50 per brick. Bricks used in this video was 12. I used a cut off wheel to cut a small hole then used a jig saw for the long cuts, if you do not have an air tank, you could drill a hole large enough to get a saw blade in to start the cut.