people love to advertise Ionics for free and will even consider telling Ionics about people who have the sticker but not the system
yep, that's the power of a brand. I wouldnt say they were advertising ionics, because customers bothe domestic and commercial would never be ionics customers.
More like they're advertising the fact that they use the best gear, and like it or not customers do recognise the reach and wash water man, especially on commercial.
Personally I wouldn't put the name of the company (gardiner or anyone else) on my van or gear because I don't want to make it easy for other people to come along and compete with me. If they know where you get your gear, that's one step easier for them. Let them wonder how much it all costs and have to find out for themselves I say.