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Horizontal Pump Chamber

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.

Guidance notes:

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.

  • 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


 Model    Length    Width  


   Inlet invert  




 Outlet invert


 Outlet dia




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
AT2000  8100  1900  2400  800  160  300  63  2000L

all dimensions above in mm....

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 SEND US YOUR ENQUIRY.

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