{"id":8968,"date":"2023-03-13T11:01:24","date_gmt":"2023-03-13T09:01:24","guid":{"rendered":"https:\/\/flovac.es\/?p=8968"},"modified":"2023-03-16T15:10:12","modified_gmt":"2023-03-16T13:10:12","slug":"how-to-identify-5-000000-litres-per-year-of-salt-water-entering-your-sewer-network-at-a-single-glance","status":"publish","type":"post","link":"https:\/\/flovac.es\/en\/news\/how-to-identify-5-000000-litres-per-year-of-salt-water-entering-your-sewer-network-at-a-single-glance\/","title":{"rendered":"How to identify 5.000,000 litres per year of salt water entering your sewer network at a single glance"},"content":{"rendered":"

For many coastal communities, infiltration from stormwater and inflow from ground water (I&I) causes major problems. Not only are systems not designed to handle large extra flows, but the additional power costs and operational problems can bring a network to its knees.<\/p>\n

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St Huberts Island<\/strong><\/p>\n

The coastal community of St Huberts on the central coast of New South Wales in Australia is a beautiful town, surrounded by fantastic fishing spots and has a very high water table. As is common in these coastal communities a vacuum sewer system has been installed to handle the wastewater from the houses. The system was installed in the mid nineties and over the years there has been an increase of I&I into the system.<\/p>\n

Vacuum systems are usually installed in high water table areas because they are less susceptible to infiltration than are gravity systems. Over time homeowners gravity pipes and even old collection pits can break and allow ground water to enter the system.<\/p>\n

Central Coast council realised that they had a problem which left their residents vulnerable to a loss of service and hire Flovac to come up with a solution that would help locate areas within the network where stormwater was entering the network.<\/p>\n

Flovacs monitoring system<\/a> was installed and within weeks it became evident that the system was taking in water, not only during storm events, but also during high tides.<\/p>\n

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Graph shows rainfall in the area and an increase in valve activations during wet weather events<\/strong><\/p>\n

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