@rrm , IMHO
@pbnaudio gives you a great recommendation. I used a VPI 16.5 for years, used it with most of the available fluids and brushes available and it was pretty good. I was a beta tester for AudioIntelligent, but my fav was the Walker Audio Prelude which took 4 steps, a bit of a pain in the a**. Then after checking out a few friends US machines and having champagne taste & beer budget, I followed suit following the methodology eloquently described by @rushton in this thread:
https://forum.audiogon.com/discussions/rushton-s-diy-approach-to-ultrasonic-record-cleaning-published-by-posit and here:
https://positive-feedback.com/audio-discourse/rushton-paul-diy-approach-ultrasonic-cleaning-lps/ Long story short; ebay US tank, Vinylstack record spinner to rotate LPs in the tank, a combo of suggested chemicals (a complex first purchase that will last most years), a cheap pump/filter setup to keep the tank clean for ~50-60 LPs without changing water/chemicals and a DIY vacuum rinse station that I made from a $5 Ikea lazy susan. Details of that easy project is in my posts on Rushton's thread. All in ~$500,
It works great, is easy to do(not as simple as a one-button $3k machine), and clearly improves sonics both on old & new LPs. Crap in newly purchased albums isn't to be underestimated. It wears on styli and cantilevers and they should always be cleaned before playing if you want to preserve your gear and get the best sound for your investment. Cheers,
Spencer