Special beakers with an adjustable black rubber support ring are available on request. They are used to save detergent liquid whenever small quantities of objects are to be cleaned, or if washing is to be performed with a detergent solution in a beaker and rinsing simultaneously in another beaker. They are also used to wash objects with particularly aggressive solutions which must not come into direct contact with the steel tank. This kind of cleaning is also called "indirect cleaning" because the solution (generally aggressive for the tank) does not fill the ultrasonic tank.

Cleaning solutions should be changed when decreses the cleaning action or when the solution is dirty.

When the heating function is enabled with temperature higher than 50°C., do not place your hands in the washing liquid. Risk of scolding and burns. Use gloves and adequate means of protection.

The degas function is used for degassing the cleaning liquids and allows some sound/chemical applications to be adopted, e.g. degassing of high polymer solvent (HPL). During this function, the detergent solutions are released from air bubbles which prevent effective propagation of the ultrasound waves. Whenever a new detergent or water is used, a degassing cycle of approximately two minuts is recommended in order to bring the air bubbles to the surface. Higher temperatures not only affect the quality of cavitation, but also help to degas the liquid and improve the chemical cleaning action. A big and unheated ultrasonic tank could require several hours to degas. The amount of dissolved gas decreases with increasing temperature. It's important to start the degas function before cleaning parts and after the detergent or chemical is added.

A weak acid is an acid that dissociates incompletely in water and is a weak electrolyte.