Audio Desk Record Cleaner

I've been using mine with just reagent grade water and no additive at all. I used the supplied additive until it was gone. I find it to work just as well or better without it. I certainly may try the additive again and wouldn't recommend experimenting with other additives. I think I would only use reagent grade water if going with no additive. Because of it's purity it's a very powerful solvent(actually would be dangerous for consumption, not that you would ever drink it). It also leaves no residue behind. Not so sure about residue from the additive. I know both ways work very well. For now I figure simpler(and cheaper) is better.

Thanks all,for the info
ed

Before investing tons of money, I would try Spin Clean Record Washer ($80) and wood glue method (Franklin International 5005 Titebond II Premium Wood Glue, $12 for 32oz, good for cleaning 100+ LPs).
For LPs looking clean but generating pops and other noises, I use wood glue.
For LPs looking seriously dirty, I first use Spin Clean and then wood glue.
2/3 of salvaged records (bought bulk from eBay and garage sales) turned out to be very listenable with these two methods. I also use roller cleaner (In the Groove Record Cleaner) each time before playing.

As I mentioned in another thread, you could build one fo about 1/10th cost of the AD system.
http://www.diyaudio.com/forums/analogue-source/218276-my-version-ultrasonic-record-cleaner.html

It sounds like the manufacturer has worked out a lot of kinks that plagued the earlier versions of the product. It might be of interest to many of the AD cleaner owners that Jim Pendleton of Osage Audio, the designer of the AIVS record cleaning solutions, is actually in the process of developing an enzyme-based concentrate for ultrasonic cleaning machines. It uses the same philosophy as the existing AIVS products, which means that it is safe and effective and doesn’t contain any lubricants or coating components. I recently spoke with Jim and he's actually looking for testers willing to try his solution with their AD cleaner. I thought I'd share this with other A-gon members who might be interested in working with Jim. He is a great guy and his products have always been top quality. I have no doubt that he's again about to offer a great product. I'd urge anyone interested to send Jim an email as he was concerned with a lack of interest in cleaning solutions for ultrasonic cleaners.