H & S Maintenance

Located in Melbourne H & S Maintenance was established in 2010, specialising in air scouring and swabbing of water & sewer mains. With our extensive experience we have established specific processes and equipment to effectively and efficiently undertake this work all over Australia.

H & S Maintenance is committed to providing a high quality service to clients as well as developing long term relationships to ensure the best outcome for customers and the company. We pride ourselves on our performance relating to customer satisfaction, health & safety, environmental management, industrial relations and our contribution to the health & vitality of the communities in which we operate.

Our Accredited Integrated Management System (IMS) enables us to maintain and improve our performance to best practice, quality, health & safety and environmental standards.

With over 40 years’ experience between them Gary & Shane have worked for water boards and councils in many different locations including; Melbourne, Regional Victoria, Regional N.S.W and New Zealand. With a team of very experienced staff H & S Maintenance can offer professional and quality services for the smallest to the largest of tasks.

Air Scouring

Air scouring is a process of cleaning mains and it is used widely in the cleaning of water & sewer mains.

Air scouring is a non-abrasive and most cost effective system to clean water mains. An average of 4km and up to 8km of water mains can be cleaned in a six hour period using existing fitting e.g. valves and hydrants. After isolating a section of water main the existing water is removed with high velocity and low pressure air. A controlled amount of water is then added which creates slugs of water. The air and water mixture creates a vortex which removes sediment and biofilm from the pipe. All pipe types can be air scoured .Air scouring is effective for mains up to and including 300mm.

Removing sediment and biofilm buildup from potable water mains can help increase flows and improve water quality. Customer complaints for discoloured water & lower pressure are often the first indication of a need for action. Reduced chlorine residuals are also an indication of a need to clean the system.

Water Quality Testing

As part of our air scouring we offer pre and post water quality testing. This includes Free and Total chlorine and Turbidity testing. These tests help identify any changes to the chlorine and turbidity levels in the water and allows the water authority to make changes if required. We also offer RPM testing, RPM testing gives an indication of how dirty a section of water main is.

H & S Maintenance use modern and state of the art machines, to ensure reliability and quality of work.

Benefits of Air scouring

– Most cost effective
– Provides clean mains, improves water quality and provides better flows.
– Eliminates discoloured water

Potable Water

Air Scouring creates a combination of air and water which dislodges bio-films & silt from pipes & fittings. This results in a cleaner water system producing less dirty water complaints and reduces the amount of chemicals required in the reticulation system.

Bore & River Water

These mains have a high degree of sediment in them which air scouring removes, resulting in better flows, higher quality of water and a dramatic decrease in dirty water complaints.

Sewer Mains

Air scouring removes build-up of waste in mains thus increasing dramatically the flow through mains. Best used in rising sewer mains, 100% increase in flows has been achieved.

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