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Old 08-08-2012, 05:36 PM   #84
imperfectutopia
Knows what a fatty is.
 
Join Date: 09-17-10
Location: Memphis, Tn
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There is a sizing calculator on this site somewhere that gets you a round about number for your airflow holes. Another thought, have you considered using ball valves? I wish I had done it for mine. They are super easy to set consistently time after time.
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