The statement that distilled water is better than R/O water is factually wrong. Most of the distilled waters one can purchase contain FAR more minerals than R/O water, particularly the magnesium and calcium carbonates and the sulphate compounds that one is most concerned about (the stuff that makes water "hard" and leaves a deposit). I have measured the hardness and conductivity of commercial distilled water and it is not that good. But, I suppose the question is whether such waters are good enough, not whether they are absolutely pure.
I am willing to bet that any soft water, except those softened by ion exchange where sodium chloride is exchanged for other minerals would be acceptable for these purposes.
By the way, I've tried steaming records clean (I used R/O water I make for fish tanks). This does work, but it is such a BIG hassle it is not worth the effort. Get a decent manual vacuum cleaning machine and be done with it.
I am willing to bet that any soft water, except those softened by ion exchange where sodium chloride is exchanged for other minerals would be acceptable for these purposes.
By the way, I've tried steaming records clean (I used R/O water I make for fish tanks). This does work, but it is such a BIG hassle it is not worth the effort. Get a decent manual vacuum cleaning machine and be done with it.