I have an Okki Nokki vacuum RCM and a Degritter II ultrasonic.
I clean all my new records before playing them in the Degritter using distilled water only, and no cleaning formula. For used records or ones that are otherwise soiled and need a deep clean, I use my Okki Nokki as a presoak with AIVS Formula #15 enzymatic solution, followed by a two tank cleaning in the Degritter. The first tank has Degritter’s cleaning formula and the second tank is a pure distilled water rinse cycle.
This process has been extremely effective for me. I have about 5000 LPs I’ve collected over the last 50 years or so, and continue to buy about 200 LPs every year.