Pump stations

For pumping sewage and water to mains

When discharge to mains is required, but to do so by gravity is impractical, a pump station system will be needed.

Pump station systems are usually bespoke. However there are several factors that play a role in identifying precisely the right tank sizes and type that are required for your project.

Marsh Industries’ system designers can work closely with you to identify all key requirements in accompaniment with Marsh Industries’ unique process design software, Gaia Sege.

All pump stations are available for dirty water (DW) or sewage (SW), in single pump (SP) and twin pump (TP) configurations.

Guidance notes:

  • Where foul water drainage from a domestic property is to be pumped to 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
  • For other building types the capacity of the receiving chamber should be based on the calculated daily demand of the water intake for the building, or when only a proportion of the foul sewage is to be pumped then the capacity should be based pro-rata
  • If the sewer is to be ‘adopted’ by a local water authority, please contact Marsh Industries as Sewers for Adoption (SFA) specification and additional local authority related criteria may apply

Configuration and components are shown for illustration purposes only

Marsh commercial / industrial pump chamber


  1. Inlet
  2. Internal baffle plates
  3. Submersible pumps
  4. Outlets
  5. Outlet valves
    (Internal as standard. External/chamber optional)
  6. High level alarm
  7. Manway access

Industrial pump station

  • Designed to BSEN12050 for structural strength and water-tightness and to BSEN752 to comply with hydrostatic and electrical requirements
  • Smooth internal walls and integral pump well improves pump efficiency and eliminates ‘dead spots’ which can lead to odours and septicity
  • Unique ‘keying-in’ lip to assist anchoring into concrete surround
  • Variable invert depths and orientations ­­­to suit individual site conditions
  • Pre-assembled pipework for fully automatic operation
  • Heavy duty (industrial) ‘peardrop’ floats and market leading pumps throughout ensure robust, reliable design and maximum efficiency of pump with minimal clogging or wear
  • High level alarm as standard

Commercial/industrial tank examples

Maximum capacity (litres) Ø2.5m chamber length Ø3m chamber length
30000 6500
40000 8600 5900
50000 10600 7200
75000 10600
30000 13900


Standard pump stations

For smaller housing projects, and commercial/industrial sites

Model Length Width Height Inlet invert Inlet dia Outlet invert Outlet dia Total storage
AT2800 3000 1250 1750 800 110 300 63 2800L
AT3800 4000 1250 1750 800 110 300 63 3800L
AT4500 2650 1600 2100 800 110 300 63 4500L
AT6000 2950 1900 2400 800 160 300 63 6000L
AT8000 3640 1900 2400 800 160 300 63 8000L
AT10000 4200 1900 2400 800 160 300 63 10000L
AT12000 5200 1900 2400 800 160 300 63 12000L
AT14000 5840 1900 2400 800 160 300 63 14000L
AT16000 6700 1900 2400 800 160 300 63 16000L
AT18000 7500 1900 2400 800 160 300 63 18000L
AT20000 8100 1900 2400 800 160 300 63 20000L

The dimensions given on this page are for guidance only.
For precise tank sizes and configurations, please contact Marsh Industries.
All dimensions in mm.

Marsh commercial brochure
Civils/Commercial brochure