The submersible mixer shall be liftable and lowered, and shall be easily removed for inspection or service without the need for personnel to enter the tank or well.
The agitator shall have a sliding guide rod bracket as an integral part of it, the entire weight of the agitator shall be loaded on a bracket which must be able to withstand all thrust caused by the agitator. The agitator, its accessories and cables, shall be capable of continuous submersion under water to a maximum depth of 20 meters without loss of watertightness.