When filling the solution tank before operation, be sure to put the water in the tank before the detergent. Select a low-foaming detergent and add an industrial defoamer for additional protection against foam. If cleaning an excessively dirty floor, use less detergent instead of more, as extra detergent will mix with the dirty water to create additional foam. Also, pre-washing a heavily soiled floor by driving across it with the machine’s suction turned off and the squeegee blades off the floor will help keep foam to a minimum.
After the cleaning job is complete, be sure to rinse the solution tanks thoroughly to reduce chemical build-up. Over time, the build-up of dried-on chemicals can result in excess foaming when combined with additional cleaning solution. If you use the machine to strip the floors, a thorough cleaning can also remove any chemicals found in the floor wax that can also lead to additional foaming.
In addition to the solution and recovery tanks, it is also necessary to clean any machine parts that come in contact with the cleaning solution to eliminate foaming. Regularly cleaning the machine’s squeegees and float assembly will reduce the build-up of foam-producing chemicals and allow your machine to clean your floors effectively.