well I was a little confused by the videos I seen where when they purged the line out you can see obvious freon. when I purge the line all I could hear was a little air and it sure didn't come out cold. Also everything I seen and read said not to turn the can upside down or anyting.. so here I am purging away thinking where the hell is he freon? Anyways I seem to not be able to fill the system for whatever reason... Compressor wouldn't come on well it was running. I brought it back inside to give it a think does it seem to have a leak.. I went around tightening all the connections I had a suspicion about the high side connection to the compressor so I changed the o-ring. I felt that the high side Schrader valve was leaking with the line connected to it. So I disconnected it as it's not needed. Then I went to put some freon in the system again after bringing the vacuum down to 30 pounds. And it seemed to start taking Freon and bringing up the pressure past 20. So I took it outside and by this time it's getting way past 90 degrees out. And this time the compressor did come on. By that time I was out of freon so I had to go get a couple more cans. I think I turn the system off and both the gauges went up to like 90 or something and it freaked me out seeing the low side at 90. But I believe with the system off its supposed to level out LOL.. so I start running it again.. I go get a couple more cans of freon and try some more but it just didn't seem to come up and it's not cooling and everything is getting hot besides me lol...