WwLocalPressureTankSystem represents a buried storage chamber containing one or more grinder pumps, to propel fluid from unpressurised domestic pipework, and to pressurise a portion of the downstream Wastewater network. The Wastewater network conveys sewage from properties to treatment plants for treatment and disposal. WwLocalPressureTankSystems are usually installed in a pressure wastewater zone, where all pumps contribute to the pressurisation of a large public network, but can also be installed as single connections in a capacity constraint area where the tanks storage is leveraged to temporarily reduce strain on the network. Council-maintained WwLocalPressureTankSystems must be linked to a WwLocalPressureSite.It is spatially abstracted to a point, and is a node on the Wastewater network.IDS-compliant WwLocalPressureTankSystem data will be inserted via the WwLocalPressureTankSystemStage table.When deleted or edited, the record is Archived. A snapshot of the feature record, before it is edited, will be sent to the archive table immediately prior to the first edit of the day for that record.WwLocalPressureTankSystem assets are represented in SAP as equipment objects, located under a functional location derived from its corresponding WwLocalPressureSite.Entity type: Thing.Projection: New Zealand Transverse Mercator (NZTM) - EPSG: 2193Vertical datum: New Zealand Vertical Datum 2016 (NZVD2016) - EPSG: 7839
