I do a High School every year that is plastered in chewing gum. When i originally tendered
i put on the tender that only some of the chewing gum would be removed, that which was sat
proud of the Bitumin backing. Another quote included £1.50 per blob, his quote was £9500 for
the 1800 SqM they wanted cleaning that year. Glad he was such an a**ehole. Some of the smaller classrooms are more chewing gum than carpet!!
If i'm in the mood i use Craftex chewing gum remover (Very quick).
If theres lots of time Craftex orange Gel ( slowly soak),
or more often than not, if the wand doesn't shift it, it stays put.