Problems w/ Nitty Gritty RCM?


I was having a lot of trouble with surface noise on new vinyl. Before first playing my new LPs I was giving them a wash with my Nitty Gritty 1.5Fi, but I was still getting a lot of pops and clicks. In an attempt to discover the source of the problem, I stopped washing new records and just giving them a dry brush before first playing. This has reduced the surface noise quite a bit.

I'm wondering, is there something wrong with my Nitty Gritty, possibly something abrasive in the brush? Has anyone else experienced this?
gradys
What fluid are you using with the machine? I had the exact problem you had. ecords were much noisier after the wash.
I've used Nitty Gritty machines since 1982 and NEVER experienced the issue you
described. I've used them on new records and used ones. I now clean them
with Last brushes and AIVS fluids (a three step process winding up with a rinse),
but even when I used one-step solutions there was never a case where the
cleaned record sounded worse than before it had been cleaned.
Genesis168 - I'm using the stock solution nitty gritty provides - Purifier 2. Are you using a Nitty Gritty?
Dopogue: If you have a sec, could you describe your cleaning process in a little detail. I'm interested in trying out some different combinations of cleaning methods. Thanks.
Gradys, as noted,I use the 3-step AIVS products (Enzymatic Formula followed by Super Cleaner Formula followed by Ultra-Pure Water) although I've been experimenting with Aquafina, as recommended by Michael Fremer of Stereophile, instead of the Ultra-Pure Water, and can't tell any difference.

This is with a completely manual RCM, by the way.

I prefer Last cleaning brushes, available many places at 10 for $30, and keep a separate one for each fluid. When they get dirty -- they're white, so it's easy to tell -- I just pitch them. I put a bead of fluid down each one before a cleaning session.

That's about it. I don't flood the records with fluid, for the simple reason that I don't want them to drip when flipping them over on the Nitty Gritty (actually, currently a Record Doctor III clone from Audio Advisor). Oh, and I reverse directions on the RCM with each fluid; it makes the velvet "lips" last a lot longer. Anything I've left out? Dave