Hammy, for Disc Washer brush use get a bottle of Benzalkonium Chloride 1:750 and mix one part BAK to 4 parts distilled water.
DIY record cleaning solution recipe needed
Do you make your own cleaning solution? Would denatured water and isopropanol work? Is that bad for vinyl? I'm using a cheapo Discwasher brush with D4 fluid. I want to make my own fluid! Thanks for any info.