Humminguru Ultrasonic Vinyl Record Cleaner https://humminguru.com ~$465 shipped to USA The Humminguru (HG for the rest of the review) is a fully automatic, one step process ultrasonic record cleaner. The HG originally started as a Kickstarter campaign in Dec 2020. Shortly after fulfilling campaign backers fall of 2021, I bought one of the first retail versions in Nov 2021. The HG is produced by Happy Well Tech (a subsidiary of Happy Well International Enterprise LTD) out of Hong Kong. They also own and operate the factory the HG is produced in, located in Zhuhai China. Specifications: 350ml removal water tank Dual 40 Khz transducers Dual dryers 2 and 5 minute cleaning cycles 5 and 10 minute drying cycles with dual dryers Dimensions 13.5” D x 6” W x 10.75” H Optional rings for 7” and 10” records Replaceable water tank, water tank filters and record rollers Low noise/Quiet operation Simple Operation: Press power button. Fill water tank with distilled water to recommended level for record size. It will hold 400ml but I typically fill half way between the 12” and 7” level marks. Approximately 350 to 375ml would be my estimate. Pour water tank contents into basin through top of cleaner. Insert water tank back into its slot in the size of the cleaner. Set switch on other side of cleaner to 5 or 10 minute drying. Press automatic button once or twice (2 or 5 minute cleaning). Press Start. Grab a beer and relax while the Humminguru cleans your dirty shit. A Belgian dubbel is recommended. Things of note take one: The power button must be fully depressed. If you only lightly press it, it will power on briefly and then turn back off. New water poured in the water tank should be degassed. Optimal cavitation will not be achieved until degassed. I run a manual 2 minute cleaning cycle to degass with each new replacement tankful. Reused water doesn’t need to be degassed until replaced IME. You can reuse the water. How many times depends on your records. I only use the 5 minute dry time. 10 minutes is a long damn time. On a rare occasion, a record is cut small that won’t rotate. I’ve ran across 3 in 300 records so far. I just stood there and hand rotated but Happy Well suggested putting a mm or two of folded paper behind the rotation wheels to accommodate the slightly smaller records (if I recall correctly). A drying cycle is required to drain the basin. Unfortunately this is the only way to drain the basin into the water tank. Get a drying rack, so you can keep drying cycles to a minimum. I use this Oxo Good Grips dish drying rack: https://www.amazon.com/gp/product/B007SU1WUW/ref=ppx_yo_dt_b_asin_title_o04_s00?ie=UTF8&psc=1. It’s much easier on records than the racks that come with manual cleaners like Knosti Disco Antistat or knock off Amazon cleaners. Before placing records into the drying rack, wipe down any beads of water with one of these antistatic microfiber cloths: https://www.amazon.com/gp/product/B00009R7VT/ref=ppx_yo_dt_b_asin_title_o09_s00?ie=UTF8&psc=1. Never put cleaned records back into an old inner sleeve. There are lots of choices for inner sleeves. I’ve tried many and most are pretty good, but this one is far and away the best I’ve used: https://www.marecordings.com/main/p...ucts_id=202&osCsid=4dc259d2lm2m95fh71773iuft0 Things of note take two: I use two Humminguru cleaners. One for washing/cleaning the record and one for rinsing the records . Using a cleaning agent with a surfactant will significantly improve HG cleaning in my experience. Besides aiding in actual cleaning, it helps the record get fully wet by reducing surface tension. If you use any kind of cleaning agent, in any kind of record cleaning ritual, I’m of the opinion you must rinse. Otherwise some of the cleaning agent could dry on the record for your expensive stylus to pick up later and potentially cause additional noise or veiling effect. I replace the cleaning water every 8~10 records cleaned. It just depends on how dirty they were. While 8~10 is average, I have replaced it quicker on occasion. I replace rinsing water every 5 records max Only use distilled water for cleaning and rinsing. Every record gets 5 minutes of cleaning and 5 minutes of rinsing. For my workflow, I do let the 5 minute drying cycle run both times. I figure the drying cycle after the cleaning is helping blow off some cleaning solution before going into the rinse cycle. What works for me may not work for you. Experiment. Things of note take three: I replaced the filters in the water tanks around 200 records. There’s really no recommendation time wise that I’ve found. They just started to feel drastically different, so time to go. To ensure I’m getting as much debris out of the water as I can each cycle, I use a Melitta single cup plastic pour-over with #2 filters found here: https://www.amazon.com/gp/product/B0014CVEH6/ref=ppx_yo_dt_b_asin_title_o06_s00?ie=UTF8&psc=1. This makes it easier to pour the water in to the basin of the cleaner, as well as additional mechanical filtering. Things of note take four: This is the dirtiest record I had in my collection. Embarrassingly dirty. Strangely not as embarrassing as the things that sometimes come from Gene's mouth. After run through the wash and rinse cycles I’ve cleaned just over 300 records now with the HG’s and have just a little over 150 to go. It’s dead simple to use and the fact I can set records in and do other things is important to me. I just couldn’t get on with manual cleaning. It demanded too much attention from me. Can’t drink fabulous Belgian ales if you have to use both hands the entire time. It’s also pretty darn quiet, so I can listen to music or watch the playoffs while cleaning a batch of records. It is a little on the slow side, so if you have thousands to clean, you may want to consider something that cleans more than one a time. The price of entry is cheap too; around $465 shipped to the United States via FedEx. I love the Humminguru. It’s been a great investment for me. At the end of the day, I’m of the opinion that no one style of cleaner or one technique is inherently better than another. Just as long as you clean your records. So get something you know you can tolerate or even enjoy. That way you’ll be more likely to use it regularly. A clean record is a serious upgrade sonically. And it’s relatively easy to do. And rinse. I really think that’s as important as cleaning your records.