you're welcome

here's the site and you can also share this to the interested party


http://www.wrenchead.ca/Blog_pages/AC_CCM_07.pdf


about the recovery if they ( the techs ) want to prove it themselves that they can't get the same amount of refrigerant they put into the system ;

recover and evacuate the system

charge let's say 1 kilo of refrigerant into the system

and recover . the result will be less