I purchased this unit and some bottles of BLITZ concentrated cleaner. I filled the unit as required with this cleaner, diluted with distilled water as instructed on the bottle (5 parts water, 1 part cleaner). Here is a link to the cleaner: 6 Pack - (8oz) BLITZ Concentrated Jewelry Cleaning Solution - Ideal for use with Ultrasonic Cleaners
In the past I have only used the red-jar jewelry cleaner with a small brush. Now that I've used this CD-2800 ultrasonic cleaner on rings, necklaces, watches, eyeglasses, I will never go back to doing it that way. The ultrasonic cleaner takes away the need to do this! The "brushing" action of microscopic high velocity bubbles created by the ultrasonic feature powers away all the dirt in the nooks and crannies of jewelry and makes them sparkle like I've never seen before. The tank became filthy, demonstrating how well it is working.
This cleaning tank is just the right capacity and power for what I am need it to do. I have not come across any situation where it was not powerful enough or big enough. Any larger and I would be spending more on replacing cleaner fluid. The timer works great. On constant usage the tank gets warm inside but not hot.
Convenience-wise, I find it to be a bit clumsy. The unit is shaped like an egg and requires that you cradle the unit with two hands to move it around without sloshing. A handle would be appreciated.
The same is true of the internal tank. In order to retrieve the jewelry, You have to either reach in with your fingers to grab the item or use fingers on alternate hands to pull outward on the basket and raise it out of the tank. I have found that my fingers get very dry and cracked because of this.
Even with these ergonomic problems, I feel the unit is a tremendous deal and believe every family should have one. I can't imagine not having it. There is no other way I know of to effectively remove the embedded dirt from the underside of gemstones and restore the original sparkle.
One note of caution: stones which are glued-in instead of being held in with prongs can come loose and fall out of the piece during or after cleaning with ultrasonics or jewelry cleaner. I don't fault the unit, I blame the jewelry maker.
I have also begun using the unit to clean small electronic parts and tools. It works so well, everything I see in my house I question whether or not I might try cleaning it in this unit.