A packaged system can reduce the time and cost involved in with civil work and site labour; compared to the conventional alternative of a concrete well and separate pump system.
Over many years of new, intense housing and commercial development, the prime location sites where sewage/storm water could have been disposed of by gravity into the public sewerage system have long ago been used up.
A Packaged Pumping Station is sometimes also called:-
“Package Pumping Station”
“Sewage Pumping Station”
"Surface / Storm Water Packaged Pumping Stations"
Excerpt taken from ‘The Building Regulations, Approved Document H’
2.36 – Where gravity drainage is impracticable, or protection against flooding due to surcharge in downstream sewers is required, a pumping installation will be needed.
2.37 – Package pumping installations are available which are suitable for installation within buildings. Floor mounted units may be particularly suited for installation in basements. These should conform to BS EN 12050. Pumping installations for use inside buildings should be designed in accordance with BS EN 12056-4.
2.38 – Package pumping installations suitable for installation outside buildings are also available. Guidance on the design of pumping installations for use outside buildings may be found in BS EN 752-6.
2.39 – Where foul water drainage from a building is to be pumped, the effluent receiving chamber should be sized to contain 24-hour inflow to allow for disruption in service. The minimum daily discharge of foul drainage should be taken as 150 litres per head per day for domestic use. For other types of building, the capacity of the receiving chamber should be based on the calculated daily demand of the water intake for the building. Where only a proportion of the foul sewage is to be pumped, then the capacity should be based pro-rata. In all pumped systems the controls should be so arranged to optimise pump operation.