Humminguru Nova

@lalitk agreed. I’m also extremely impressed with Craft Recordings. Bought a Bill Evans “Sunday At The Village Vanguard” as well as Ron Carter “Where?” and Art Blakey “Caravan”. All are excellent quality. 

@ljgerens 

thanks for the caution, the idea came from another discussion, do you think 2% glycol by volume is risky?

https://forum.audiogon.com/discussions/kirmuss-ultrasonic-vinyl-cleaner?highlight=kirmuss

excerpt:

"lnitm OP

170 posts

12-28-2025 at 09:34am 

Elliottbnewcombjr

Do you think adding something to my mix to get a positive/negative charge would be beneficial? If so, add how much of what

yes. Add 2% per volume of propylene glycol to mix. 

In otherwords approximately 1 Oz per gallon of propylene glycol. It’s what is in the Kirmuss solution that gives that charge to attract the bubbles to the vinyl. Add in the tank with distilled water." 

@elliottbnewcombjr 

I don’t know if 2% is risky, but I see no reason to include something that is difficult to remove and potentially can leave a sticky residue on the record surface. Polypropylene glycol is a neutral polymer and has no charge although in water the polar oxygen atoms and hydroxyl end group atoms can have a weak attraction for water molecules and other cations. I doubt that this would have a significant effect on the cleaning efficiency in an ultrasonic bath.

I was researching record washing solutions and MoFi Ultra Record Wash is highly rated and is designed for ultrasonic cleaners and is recommended for Degritter. 
I get it that folks love to cook up their own recipe but I’m not a chemist. And I don’t want to risk relying on formulas developed by someone who thinks they’re a chemist. No offense. I’ll be using the solution included with the Nova and will also give the MoFi Ultra a try. 

@audphile1 

My recommendation would be to hold off on buying cleaning solutions. From what I’ve learned, ultrasonic cleaning machines do a stupendously good job using distilled water alone. As @ljgerens pointed out, most cleaning solutions tend to leave behind a very thin layer of residue unless you follow up with a second tank of clean distilled water for rinsing. If you’re not doing a dedicated rinse cycle, I’d personally avoid adding any cleaning solution altogether.