How do you get the cap off on the low side of the AC system.
I am going to charge the system and it seems like it will not come off with a twist. Is it a cap and need to come off straight up or what...
It seems like I am missing something. I do not want to break or twist off the cap and ruin the pipe it is connected to so what or how do I get it to come off? Is there a trick?
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