I am so happy that this was a productive post, even if I did take into the weeds a couple of times.
@antinn thanks for the productive input.
drained after 40 records and ran through a filter media to see results. Was quite surprised and I the Pro Ject Vac system and it leaves a bit behind.
I will just change water more frequently as I am not rigging a pump and filter.
My records are sounding awesome!
I have found that ultrasonic cleaning alone is not sufficient when cleaning very dirty records like the ones that you pick up at garage sales, flea markets and Goodwill. For those I first use my old trusty Spin Clean. A good scrubbing removes the real grunge and my $200 Happybuy cleans deep down into the grooves which the Spin Clean can't do. For cleaner records the ultrasonic works
great! I purchase a lot of Analogue production and MoFi including one step vinyl.
I am always amazed at the amount of debris that a ultrasonic cleaning pulls out
of these brand new high quality records!