Would like to introduce myself I am a fairly new member to the forum. I would like to say that this is a great site with tones of useful info from people that actually know there trade!! I am wondering the correct process for measuring airflow across you're a/c coil using a manometer or other device and what you're static pressure readings should be for a system with proper flow. I know it varies depending on the load of the return air. Any info would be much appreciated. Looking forward to being a member!