An innovative pressure sewer system from NOV Mono was selected by Southern Water to replace ageing septic tanks for over 900 houses in the community of Lauderdale, Australia.

Southern Water chose the NOV Mono sewer system for its reliability, cost-effectiveness, ease of use and simple maintenance. Mono has secured the long-term supply and design agreement with Southern Water, and has successfully installed its unique InviziQ PSS system in over 270 of the properties, with more set to be added in the near future.

The traditional gravity-fed sewerage system was unsuitable for the application as the Lauderdale area had a high water table and flat, sandy terrain. A pressure system was found to be more suitable for the area for its ease of construction, and ability to restrict ground water infiltration. Mono’s InviziQ units have been installed on the properties of those owners who have joined the scheme.

Mono’s Industrial Segment Manager for Pressure Sewer Systems Richard Pacholek explains that InviziQ is an intelligent, practical and reliable alternative to conventional gravity-operated systems because it does not need gravity to operate, and offers the flexibility to install sewers in any area, irrespective of the terrain, slope, environmental sensitivity or topography.

Having worked with Mono in the past, Southern Water was keen to use the Australian manufactured Mono solution again.

Designed to be installed in narrow trenches or via directional drilling, the InviziQ PSS system offers the installer virtually unlimited freedom in the design and layout of the sewage network to suit the specific needs of the project. The InviziQ system has a storage tank of 900 litres, a Progressing Cavity (PC) pump incorporating a macerator, and an automatic electronic controller to regulate the flow, monitor fluid levels and protect the pump. The system can also support two-way telemetry for remote monitoring.

The InviziQ pressure sewer system also features a unique and revolutionary Dry Well, which keeps the pump motor, fluid level sensor and electrical systems separate from the fluid being pumped. A vertically-mounted pump cassette is inserted into the tank through a hole in the Dry Well, ensuring that the pump is suspended without the need for a foot. InviziQ’s design is also innovative from an operational health and safety perspective since servicing can be done easily and safely without any contact with the sewage.

Architecture & Design Team

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