We Vinyl Ultrasonic or Vacuum Cleaner?

I clean ALL my records, new and used. New ones come with all sorts of gunk from the pressing process in the vinyl. Used ones I assume are dirty. I also purchased a very cheap vinyl vac for my vacuum cleaner. 

I set my USM at 50C - hot, I know, but after much trial and error, it works!. 10 minutes at 50C and then vinyl vac it. If it's still dirty, then another 10 minutes in the USM, give it a good scrub with cleaner and brush of your choice, rinse with hot tap water, and 2 minutes in the USM and vinyl vac again. If that doesn't work, get a new copy!

New records CAN be dirty and noisy - I have experienced this first hand, so now I just clean everything. BTW, check the bottom of your water tank after you have cleaned 10-20 of your new, sealed records. You will be amazed at the gunk there.

Enjoy!

@vinylshadow 

my friend has the loracraft and I have used it. It does a great job but a high quality ultrasonic tank produces a record like a clean piece of jewelry when it comes out of the bath.  A rinse with distilled water then air drying gets great results with little to no surface noice but it is vinyl so you can’t avoid imperfections pressed in the grooves.  Regarding ultrasonic damaging the grooves the only way that happens is if the water temp gets too high    The cavitation bubbles certainly will not damage anything as they just burst.  
Hope this post helps you 

thanks 

Thanks @willy-t 

What do you think of this idea- Use the Degritter Mark II first then, instead of a rotisserie dryer, use the Loricraft to suck the grooves dry. Would that accomplish the best of both worlds for cleaning and drying? 

The Loricraft would turn into an expensive pump drier but it would reduce the overall cleaning time and the record is ready to play. 

@vinylshadow The downside of that sequence is that the record is wet on both sides when you place it on the Loricraft platter. You dry the top side, flip it over and it lands on the wet platter, and gets wet again! I have gone as far as using cork platter mats (left over from my days with a VPI 16.5) to have a dry surface to place on the platter for drying the second side, but it gets messy. That's one of the reasons why I use the Loricraft before the Degritter.

FYI - Cavitation can damage a record; what protects the record from damage is the rotation that cannot be too slow (less than about 1-rpm) otherwise there can be damage depending on the UT machine kHz and power.  The implosion event produces a high velocity jet that is one of the mechanisms by which is cleans.  Please see this video that is a computer-generated simulation of the cavitation event - Inertial collapse of a single bubble near a solid surface - Bing video. Pay attention to the pressures and temperatures (which are theoretical) associated with the implosion event. There is a lot of energy with the event.  Also see this video beginning about 6:18 which photographed the cavitation/implosion event showing the jet - Cavitation - Easily explained!