Inspect all PCBs for debris or corrosion. Inspect all wiring harnesses and connectors for damage or wear. Inspect all gear hubs for rounded teeth and excess wear. Inspect the front leg tracks for missing or damaged teeth. Do not use cleaning compounds containing ammonia on your waterbath.
Ammonia can cause deterioration of the plastic.
Use only those cleansers approved for plastic materials. These can be found in the catalogs of most scientific supply houses. Additionally, do not use abrasive cleansers that may scratch the plastic. If you use a waterbath algaecide or clear bath product, ensure it is compatible with PETG and vinyl plastics. The flow paths in both the VK 750D and the VK-7 circulators are primarily stainless steel and should tolerate most clear bath formulations.