Thanx, Peter (incidentally, my name is also Peter, but in Polish). Unfortunately, these guys mean well, but are really from the "backwoods" of Delaware i.e. if-I-look-at-it-i'll-probably-will-figure-it-out sorta guys. They try, but sometimes... well... Besides, they charge me only 1/2 of what certified MB guy does (the ONLY one in the northern Delaware), so I don't mind too much. I'm just ticked, because it's just a 10- minute job with the system discharged. Oh well, back to the garage we go...