It's always worth experimenting, as long as it's done safely. Having read the posts from window cleaners about " pure water "I've been curious about the possibilities, thinking the p/w was responsible for the magical results on plastics and conservatoties, etc.
I'm not going to name the companies responsible but some years back when window cleaning by water fed pole and pure water was being pushed, these manufacturers/companies sold it as aggressive water because pure water can't exist naturally.
It sounded feasonable and we dutifully sold it to our customers as such, magic water and all that.
Some window cleaners were ill for a few days after drinking the stuff which backed up the 'aggressive name.' What it actually was, was that the resin that the water travels over was poisionus, but there are now 'food grade' resins that do the same thing but can be drunk.
The reality and all that is actually different. Pure water is just tap water without all the 'add ons' that it picks up on it's travels or which the water companies stick in it.
So as a 'cleaning agent' not much good, but should give a softer finish to materials cleaned as a rinse agent.