Ok Al, so now its mt turn to have you repeat yourself, just know I have looked for the post with you covering this in your every 2 weeks harvest, but I just couldn't find. So let me first apologize, you are a good man.
Ok I have a room, right. It has cool tubes bringing cool air through and striate out the attic, right. I have an exhaust fan pulling through a carbon filter and pushing the air into the attic as well.I have a central 3 ton unit cooling my rooms. My blower is in the attic pulling air from there. My temps, everything is great, question is I know you said if you use an aircon you need to also have a fresh air intake into the room, cause of the ac taking a needed element out of the air being pushed back in the room. Do I need that as well seeing I am not recycling the rooms own air back through the ac, I am pulling fresh air through the blower from the attic? Or is it just what the ac does to the air that makes you need the fresh inlet. Sorry for taking your time, but thank you for your help, I have learned tons from you and continue to daily. I could honestly say you have changed my life, believe me I can't say that to many others. Thanks again.