Have nothing to hide. Have no problems. BTW multiple stops by the police, I notify of my fire arm, never have I been pulled out of the car,fire arm never seized, never a ticket even when I was in the wrong.
if SHTF does happen, no matter how much you are prepared, make sure you are in the food lines for food and water. If people don't see you there for your share, they will come and try to take what you have for them self
I know the cost of virgin r22 is out of this world on price, but 422d work almost as good and is less then half the price, I think options should be given
if filters are clean and all registers are open check zone dampers. the hissing is probably tv trying to equalize. sounds like air flow issue. and 500$ each time is a rip off