When they talk about water being a universal solvent it has nothing to do with it's ability to remove grim from surfaces.
So if plan old water is that good as a solvent do you just wash your dirty car with cold water?
And yes I've tried even with cold 000 ppm pure water and I found it don't work very well on its own
Shock, you will find quite a few on here do and are more than happy with the results, there have even been a few fallouts
on here when people disagreed with them.
But that was back in the day when pure water on its own worked, then it was even considered better than using traditional methods with
the stuff we now need to put in our water in order for it to work.