Sewage Pump FAQs
Sewage Pump FAQs
Not necessarily, grinder systems are suitable when a small diameter rising main must be used or there is a high head to overcome. Also, consider a vortex style pump for sewage which is capable of handling solid waste by breaking it down. Contact T-T Sales Department for guidance
No pump is designed to handle tampons, and stopping them from entering the pump through educating the users of a system and or screening the sewage reaching the pump is best. This being said most sewage pumps are "free passage" types. This means that they allow solids through the pump into the pipework, so if the free passage if large enough it should pass a tampon.
Yes, sewage pumps can be sized and selected to ensure the liquid is transerred at the appropriate distance and head for the application.
Yes, a submersible sewage pump can be used in a sump application. The typical difference between a sewage pump and sump pump is the solids handling. Typically a sewage pump is required to handle larger solid particles whereas a sump pump or drainage pump is used for pumping clear waters. Although all submersible pumps can be used in a sump, they just need to be sized correctly, with the correct starting equipment to fit in the size of the sump.
A sewage pump transports sewerage liquids and solids from one location to another. They are typically used when sewerage can not be moved via gravity.
Sewage pumps usually have a vortex, channel or chopper impeller as these are best suited to handling sewage solids contents, vastly reducing the chance of a pipe blockage and the resulting system failure.
Sewage pumps are centrifugal pumps, meaning they contain a motor that spins an impeller.
The rotating impeller creates a suction that lifts the liquid into the pump and throughout the discharge pipework. Sewage pumps need to have a suitably sized impeller with sufficient free passage to allow the solid particles to pass through the pump body.
Sewage pump blockages can lead to issues such as reduced flow rate, overflowing wet wells, equipment damage and system inefficiencies. There are several ways in which you can reduce the risk of a blockage occurring:
- Do not flush items such as sanitary products, nappies, wet wipes, etc... Read our Waste Disposal Advice brochure for more information and a comprehensive list of items to avoid flushing.
- Regular maintenance by a qualified engineer will extend the overall life and efficiency of your sewage pump, keeping it in optimal working condition and reducing the risk of a blockage.
There are a variety of sewage pump designs available, all with different impellers that are suited to different applications:
- Channel impeller - have partially open impellers to allow for solids to pass through, reducing the chance of blockages.
- Vortex Impeller - This impeller design allows up to full bore free passage through the pump. See Zenit's DG Steel.
- Grinder - Pumps with these impellers have cutters and cutting plates for reducing solids prior to being pumped allowing movement of the waste through smaller pipework sizes. See Zenit's GR Blue Professional Range.
- Chopper - Chopper pumps are a more industrial and heavy-duty version of Grinders, generally with a multi-stage chopping system. These heavier, fibrous solid contents like slurry or systems that have a history of ragging or blockages. See Cri-Man's PTO and PTD Series of horizontal chopper pumps.