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TheDetailer718 · 11-30-2016, 10:04 AM

Back when I was a technician. The rule of thumb was 30ft away at knee height. Of course the height of the person will be a variable but that's usually what I did.

11-30-2016, 10:04 AM	#2
TheDetailer718 Member Join Date: Nov 2016 Drives: 2013 Subaru BRZ Location: Queens, NY Posts: 62 Thanks: 2 Thanked 13 Times in 9 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Back when I was a technician. The rule of thumb was 30ft away at knee height. Of course the height of the person will be a variable but that's usually what I did.