In a message dated 7/16/99 8:55:14 PM Eastern Daylight Time,
mayfly95@paonline.com writes:

<< Ken, must a tech put this in?  No way a DIY?? >>

Well you do need a licence for this stuff.  However you can become your own
tech for $19.95 at http://www.epatest.org.  Take the test using your favorite
credit card and within an hour or so of an openbook test you too can be
certified by the EPA and know everything about airconditioners :)  Well at
least enough to be dangerous.

This is OK if you have no problems with your system and it is just low on
refrigerant.  Anything more than that I would take it to a shop that knows
what they are doing.  Also always wear eye protection when working on A/C
systems as they can blow up in your face.
Ken Wilford
Van-Again
John 3:16