My dish was on a pipe cemented into the ground. It was ruined when a tree fell on it. I bought a new dish and mounted it on top of my house's roof, securely clamping it to an existing heavy-duty steel vent pipe. That was six months ago. Now, I've decided to upgrade to a Hopper 3 and 4K Joeys. My question is: when the Dish installation guy comes to do the install, is he going to be OK with the dish being mounted to the vent pipe?