@tbradsim1
@chris
Yeah guys, we've got them, that is what they are checking and have to do so every year to the tune of around $1000. Funny thing is, I've got air breaks and a vent valve which is pressure activated BEFORE the town water line (which is above everything else) so there can be no vacuum, no pressure build and no possible way for anything to get into town water lines. Oh well, its only money, right?