In this episode I speak on a recent experience that directly effects my life as a service tech. Customers looking for a cheaper price should beware. Navac NRDD https://www.trutechtools.com/NAVAC-NRDD-Brushless-DC-Recovery-Unit save 8% with promo code knowitall Testo 300 https://www.testo.com/en-US/products/testo300 Yellow Jacket yellowjacket.com XOi Technologies 30 day promo http://www.xoi.io/hvac-know-it-all-demo/