Cleaning new and old lps is a must and a double rinse is the answer for clear noise free playback. What i find very interesting is if you dont include a small amount of a release agent to your rinse water you will leave behind residue.
do record cleaning fluids soften the treble?
Over many years of cleaning records with fluids containing a surfactant (not specified) I have come to the opinion that the process leads to a very slight softening of the treble. After cleaning the sound was more"cosy" and less extended in the treble. However I did not get this effect with the VPI fluid that came with my 16.5 machine. It made the sound somewhat drier. Anyone else noticed this /these effects? Any idea why???