Pump chambers for larger housing projects, and commercial/industrial developments.
The Marsh range of vertical pump chambers incorporates systems for pumping surface water or domestic sewage to mains, septic/sewage treatment plant effluent to drainage fields/watercourses, and bespoke systems for larger domestic and industrial applications.
When discharge to mains is required, but to do so by gravity is impractical, a pump chamber system will be needed. Although available as floor-mounted units for indoor applications such as basements, the vast majority are installed outdoors at levels to suit on-site conditions and topography.
Where foul water drainage from a domestic property is to be pumped to the mains the effluent receiving chamber should be sized to contain 24-hour inflow to allow for disruption in service, the minimum daily discharge being taken as 150 litres per person per day.
Each pump chamber contains a number of float switches linked to a control panel that automatically controls flow and levels.
In a single pump chamber there are three float switches:
Float A: Actuates the pump cycle until level drops to low level.
Float B: Low level float stops the pump.
Float C: High level alarm – positioned above the pump actuator float (min 100mm).
For twin pump chamber operation there is an additional float switch (Float D) – usually positioned 150mm above first actuator (A) – which actuates the second pump in periods of higher flow.
After each cycle the pumps alternate to extend pump life and are designed to run for a minimum of 60 seconds with no more than 15 starts per hour.
2 Submersible pump
3 Pump guide rails/pedestal
4 Pump retrieval chains
5 Non-return valve
6 Isolation valve
8 Access cover
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All pump chambers are available for dirty water (DW) or sewage (SW), in single pump (SP) and twin pump (TP) configurations.Pump chambers are usually bespoke. The dimensions given on this page are for guidance only.
For precise tank sizes and configurations, please contact Marsh Industries.
All dimensions in mm.