Submersible drainage and sewage pumps are undoubtedly very widely used both in industry and in the private sector.

The main disadvantage of this type of pump is the complexity of maintenance and repair. If the mechanical seal fails or the motor burns out, the pump has to be removed from the septic tank, washed, and the pumping part must be disassembled. Often, due to the long-term presence of the equipment in an aggressive environment, even a simple operation such as unscrewing the mounting bolts becomes a difficult task.

An alternative solution to these pumps is self-priming pumps for dirty water designed for surface installation.

Due to the presence of a priming chamber (see the photo below)

and a special impeller design – a vortex, multi-channel impeller (see the photo below).

These pumps can be successfully used for pumping surface water from septic tanks and cesspits.

The advantage of using such a pump is the possibility of applying it for pumping liquid from tanks with a narrow neck, when it is not possible to install a sewage pump, since in this case it is enough to lower only a pipe into the septic tank.

In addition, this pumping equipment is convenient to maintain. For example, the replacement of the mechanical seal can be performed on site, even without dismantling the pump from its installation location.