I've become accustomed to LBA sending two guys out on the same preventive maintenance call. One is the technician who does the inspection and testing. The other is a "supervisor" (aka a salesperson) who intends to sell us something expensive. Today's annual plumbing review began with two guys showing up, so I told them up front that I would not be buying anything today. They completely skipped checking any of the bathrooms or showers. They looked at the hot water heater and the kitchen sink, and were gone in less than 10 minutes. They were friendly and nice, but it was obvious that if they couldn't sell us an upgrade they would move on to another customer where they could make money.