In an era of worsening customer service, I never expected to really get help for the problem I was having. Our facility uses your hand wash systems and during our Global Food Safety Initiative audit this week the auditor started trying to find a reason to say that the system does not meet the code. He first said he would like to see some experimental data that supports the use of these systems over traditional hand washing. When I gave him the laboratory study that was posted on your website he accepted that, but then challenged me by asking "How do you know the chemical concentration is correct?" I wasn't sure how I was going to answer that so, in desperation, I sent out a HELP! on your website. It was past normal business too. I didn't really expect anything in time for our audit wrap up in the morning. Boy, was I surprised when Melanie called my cell phone less than 5 minutes later. She provided a procedure for us to check the PPM, also a service contract to have the units serviced and calibrated — if that is what we choose to do — and finally she sent me the results of a concentration check that was done in January, as a courtesy by your technician who was in the area! I can't thank you enough.