Re: RPZ Testers....
A spreadsheet for this sounds a little excessive to me. Just put a note in the customers file whether in Quickbooks or Peachtree or whatever.
I put it in my blackberry while I'm checking the device, along with whatever repairs I make that day.
I also don't go to the added expense of sending out pre-test letters. The city sends out the notice and the people call. That's pretty efficient.
Of course, if you are an irrigation contractor like Fireguy97, just test it when you de-winterize the system (as required by law) and give the test report to the customer at that time or save it for when they do get their notice.
"Man will do many things to get himself loved, he will do all things to get himself envied." Mark Twain