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Marsh

Marsh Horizontal Sewage Pumping Station - 10,000 Litres

Marsh Horizontal Sewage Pumping Station - 10,000 Litres

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Description

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



    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.

    KEY
    1 Inlet
    2 Submersible pump
    3 Pump guide rails/pedestal
    4 Pump retrieval chains

    5 Non-return valve

    6 Isolation valve
    7 Outlet
    8 Access cover

    Benefits

    • 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
    • Pre-assembled pipework for fully automatic operation (pump/control equipment separate)
    • Heavy duty (industrial) ‘peardrop’ floats and Lowara (Xylem) pumps throughout ensure robust, reliable design and maximum efficiency of pump with minimal clogging or wear
    • Unique ‘keying-in’ lip to assist anchoring into concrete surround
    • High level alarm as standard
    • Variable invert depths and orientations ­­­to suit individual site conditions

    Specification

    Model Length
    +/-50mm    		 Width
    +/-50mm    		 Height
    +/-50mm    		 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

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