A Tap Water that is ’soft’ is claimed to be fine for cleaning an LP, as the particulate that is suspended in it is not going to be of a dimension that can be detected by the Stylus, if it is able to become lodged deep in the groove. I am not sure if this method when used to clean would leave a residual when left to air dry?
A Water that is ’Hard’ goes have particulate suspended within it, that is best not to be in contact with a LP Groove, using this method is best avoided and using a Distilled or Purified Water will be the better alternative. Distilled and Purified Water will both air dry without leaving a residual on the surface.
When making a Solution for cleaning, there are Solutions that are used that have chemical constituents that can be detrimental and there are ratio’s of mixes for the constituents to be considered for the exact dilution of the chemical.
The Link will offer much insight into areas to be concerned about for Cleaning Vinyl LP’s.
PACVR-3rd-Edition