Used in a mechanical workshop. You need to have cleaned the bike parts and anything else with a brush beforehand. Do not expect it to remove rust at once. You need to run things many times in it. Temperature helps a lot. What is really sad is that you cannot set a longer operation time than some minutes. I would like to have it run for many hours or a day to get the results I want. I use it with an industrial grade high 13 ph detergent and it helps a lot, since I do not want to pay for special solutions. What I did not like is that there has been appearing rustmarks in the bottom of the basin due to extended contact with rust. I was leaving the machine run on temperature function for a day or two but I couldn't have the ultrasound on all the time. It is an ok machine for its money and does some deeper work but do not expect miracles, and above all, not fast acting...
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