One on a live hospital entrance & the second one on internal block paving @ a Sainsbury's
It has certainly given me food for thought and I appreciate the alternative view
We recently cleaned local hospital entrance, general soiling on flags plus chewing gum, used mosmatic full recovery plus hot at times, hardly any spray no chemical required. At times we were working within feet of gen public no problems. If we used our rotary plus poly brush there would of been more spray plus high alkaline chem
If we used rotary chem would require dwell time so areas would have to be cordoned off using mosy litterally cleaned and moved on hence small working area. Worked perfect.
Using a rotary gives you another method but I find using recovery inc recycling solves more problems.... if that makes sense ?
Have you tried recovery yet ?
