4running 14 Report post Posted March 20, 2008 Hello- I just bought a Mytee brand extractor, and wanted to get some training or info on how to use it with various types of chemicals. Basically I am looking at various PH levels in some of these chemicals and want to know if you are pre spraying them and letting them dwell then rinsing with a acid rinse? Or are you adding these PH cleaners directly to the machine. Share this post Link to post Share on other sites