Quote Originally Posted by hippieman9 View Post
it was 78 degrees
At that temperature you should have been seeing around 80 psi static. The system is probably near empty.

Here is the vapor pressure chart for Redtek 12a

http://www.redtek.com/English/product.asp?ID=47.

They reference two different pressure methods. I would have to believe bubble is the one you would use with the gauge.

I would call their tech support line for clarity and further questions.


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