Lewm,
The apparatus as you call it has magnet that hold the fixture that holds the 3 (or 4) LP's, you then lower the up's into the tank, the pillar that holds the motor with the magnetic fixture has a telescoping feature and a clamp lock. The 6 L tank with one gallon distilled water has the perfect fill level i.e all the grooves are submerged in water just before the horizontal arm touches the edge of the tub.
I typically do batches of LP's so running 3 or 4 batches of LPs and you've cleaned 9-12 albums. After two or three batches I dump the water and wipe out the tank, then fill with a fresh gallon. I run them for 10 minutes, which is 2 clicks on the US bath which has a timed shutoff in 5 min intervals. I only use distilled water, no additives, the LP's come out super clean. I let them air dry.
I have not heard any rumors of high-frequency loss using US cleaning - saw a video once, I think posted by KLAudio, where they ran an album for hours upon hours then filtered the water through a coffee filter to prove that the machines do not damage the LP's. I have detected ZERO damage to albums using this method - and if you think about it dragging a diamond stylus through the groove certainly must be a LOT more damaging to the LP than pulsating water.
Good Listening
Peter
