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WIS 4-04-01 Issue 1 Specification for type 1 package pumping stations comprising a pumping assembly installed in a dry chamber and intended to serve more than one property

This specification gives requirements for package wastewater pumping stations, installed in a separate chamber no more than 4m deep and intended to serve 2 properties or more, where the flow is pumped by a duty pump unit, with a power rating of 7.5 kW or less, fitted to a sealed collection tank and where there is an identical standby pump unit.


The document has not been reviewed for its continued currency since publication.

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