Does anybody do their own bacteria testing for sewage or category 3 jobs? I'm curious as I've been in the business thirteen years, but have only ever see bacteria testing covered three times. Up until recently, I've had an inspector test for sewage (When customer wants to pay for it) and they use something called an ATP scanner that gives results in the field immediately. I haven't been able to locate conclusive results regarding the accuracy of this unit and wanted to know if anybody else has experience with it? Ultimately, I'd like to know if the ATP testing would stand up in court.