Thumbs up for ultrasonic record cleaning

@slaw - Into ~2.75 gallons distilled water I add 1⅓ cups 99% pure Isopropyl Alcohol (roughly 3%) and 0.9 tablespoons of Ilfotol (wetting agent used in final rinse of photograph development.)  In a fresh tank that combination checks out at ~0002ppm.  It stays low thanks to continuous filtering at 0.35 microns.

I agree - always a good idea to to do a TDS test on anything under consideration as a cleaning agent, both by itself and diluted. 

@jtimothya 

Dripping overnight allows the sediment to settle out. Almost all of it.

Dripping overnight allows the sediment to settle out. Almost all of it.

@terry9 - That's interesting - thanks for the follow-up.  Guess I'm still a bit unclear.  Where does the dirt in solution settle or get captured?  In the tank, the dip of your drain tube or in the jug?

Have you considered using a filter? 

I seem to have solved my problem with the "slurry" I notice in the bottom of my tank after sitting for 5 days. In addition to circulating the water, I turn the cleaner on for 5 min. That has taken care of it. The additional filter doesn't seem to help that issue much. I am going to try a 5 micron carbon block filter in my next batch of water to see how it performs with my TDS meter checks.

Slaw describes this as a slurry, which is correct in every sense - I should have thought of that.

The slurry/sediment primarily collects at the bottom of the tank and most of the remainder collects in the dip of the drain tube. With 95% of the cleaning chemistry safely in the jug, I simply rinse out the tank and tube with pure water, second rinse with distilled, and re-use the chemistry.

Yeah, I’m a cheap SOB - and no, I haven't considered a filter because I don't think it would be as good.