im going to put the a/c system back together in my hatch,,,the compressor/condensor/high,low pressure lines and dryer have all collected some dust and the oil has come out of the compressor. so im concerned about the dirt and dust that has collected inside the lines, what should i do to clean it all out? helms suggests not using compressed air......also whats the going rate for charging the r-12 system (92).....thanks

 

just clean them out and reinstall and everything will be fine