When replacing a failing waste water pump consider why and upgrade
Repeated pump failures can leave operators worrying about if and when this might happen again and how this will affect their business.
Regular inspection of any waste water pumping system is recommended, chiefly to remove any build-up of solids or foreign objects that have ended up in the collecting tank.
However, even with these precautions, the demands of a commercial application will put strain on its pumping system, with factors such as the number of hours run and possibly the constant variation in temperature of disposed liquids and cleaning fluids which can affect reliability.
In these situations, it may well be time to consider upgrading the pumping system for something more robust.
Common faults with standard pumping systems are auto start/stop microswitch failures and ingress of water into the electric motor of the submersible pump. Therefore, when looking for a reliable pump, it is the quality and performance of these parts of the pump which should be considered.
Waste water pump experts Pump Technology Ltd are happy to discuss all pumping requirements and current problems. They will be able to recommend an improved pump selection that will fit into the available footprint and provide the pumping performance required.
The benchmark choices for commercial applications are the DrainMinor and DrainMajor pumping systems. Two key design features ensure these are particularly robust and reliable.
The automatic start/stop operation of the pump is controlled by a large triangular low-level float. It is attached to the outside of the pump body by a rigid arm. This oversize float with its simple mechanism means that it does not fall foul of any debris within the waste water, or even degradation from varying liquid temperatures and cleaning agents.
The other potential problem is the sealing of the pump shaft. Standard small submersible pumps commonly use a static lip seal arrangement to stop the ingress of water into the motor windings. A classic failure in these “budget” pumps is the build-up of waste such as coffee granules and milk skin. These can work their way under the lip seals and create a moisture path to the motor windings.
To solve this problem, the team at Pump Technology Ltd would recommend a Jung Pumpen submersible pump, either the U3KSL, U6K or the US73 depending on the discharge head required. These pumps are fitted with a fluid facing rotary silicon carbide mechanical seal, which is designed to overcome typical static lip seal failures. Any of these pumps can be fitted into the DrainMinor and DrainMajor collecting tanks. The DrainMajor is also available as a twin pump design offering users a duty standby arrangement.
To discuss commercial drainage reliability contact: https://www.pumptechnology.co.uk/
