Finding ultra-pure water locally...

Hdm and Jtimothya thanks for the info for Thermo Scientific Nerl Diagnostics i just got off the phone with a very nice lady and orderd 12 pints of there Reagent Grade Water. Next time i will go with a 5 gallon order. Steaming lps does use more water. I think steaming gets lps to sound better than not.

Doug i understand your test on a/b ing sides but as you know different stampers used for lp sides could come into play sound wise.

Dumb question: how exactly do you "rinse" the record?

Drubin: Carefully douse , paint, or spray a portion of the LP absorbing the water with a micro cloth. Or, repeatly spraying pure water on a revolving a disc seated on a RCM, then vaccuming the disc to remove the water and any contaminates. Some record steam cleaners report dipping the LP into a shallow bowel of pure water , rotating the disc with a micro cloth in one hand to absorb the water from running over the label. What ever you decide , experiment with a trashed LP to perfect your hand-work.

Drubin, my process for rinsing with a vacuum cleaning machine is to dedicate a cleaning pad (Walker Audio, Disc Doctor or Music Direct) to the final rinse; apply ultra pure water to saturate the pad; apply pad to rotating LP; then vacuum.
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With the record mounted on my Loricraft, I squirt water on it, then turn on the platter and hold a carbon fiber brush to the surface so the water gets distributed as the platter turns. Then vacuum off the water.