The production of Tennant’s “processed water” as described in the brochure can be summarised as follows. An electric current from an electrolytic cell in the scrubber-driers used to break down tap water enriched with oxygen into acid and alkaline parts (ionisation). As soon as it comes into contact with the surface to be cleaned, this so-called “electrically activated water” is said to break down dirt into smaller particles and dislodge it from the floor. It is claimed that after about 45 seconds this “activated” water turns back into normal water. All that remains in the machine’s dirty water tank is dirt and water.
Technically, water can indeed be ionised for a very, very short time in an electrolytic cell. However, ions characteristically combine into a neutral water molecule again immediately, within nanoseconds. The water is then back in its original state as far as its cleaning effect is concerned and no longer has any detergent properties.