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Old 04-27-2021, 03:59 AM   #4
catalinajack
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City: Edgewater, MD
Vessel Name: Catalina Jack
Vessel Model: Defever 44
Join Date: Nov 2011
Posts: 3,585
Your vacuum gauges tell you when to change the primary Racors. Half way to yellow means they are half way to used up. You have answered your own question. Folks without gauges change filters on a schedule that fits their requirements.
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