Friday''s Ask the Experts question from a cleaning professional on the International Custodial Advisors Network (ICAN) "Ask the Experts" page: Has anyone had success cleaning inside concrete stairwells? If so, what system do you use and how do you keep the water on one level at a time?
There are several "spray and vac" restroom cleaning machines on the market that include a wet vacuum attachment.
If this type of equipment is not in your budget, use a bucketless wet mopping system and microfiber flat mop.
There are also spinner-type hard floor wands that use high-pressure water jets and a ...
— Perry Shimanoff