I am about to put a snorkel on my foreman for hunting season. My snorkel is going to be made out of shop vac hose that connects to a piece of 2" pvc. I can only find 1 1/2" and 2 1/2" shop vac hose not just a plain 2". Out of 1 1/2" and 2 1/2" which one should i use or what would you do in my situtation.