WY> This shouldn't be a job that people get trained for.  I 
 WY> wouldn't think anyone to be qualified unless they had a 
 WY> tank of their own.  There's just too much involved with 
 WY> taking care of a tank that isn't taught.
AMEN!!  Actually, I've found many times where the things they learn in 
training are just plain wrong.
Robby
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