QBCC no. 1191153 Master Plumbers' Association of Queensland


Rainwater Tanks

Prior to the recent heavy rainfalls and floods, Australia had to endure a long period of drought and water restrictions.  However, this hasn’t stopped water charges increasing at an alarming rate, therefore, water conservation is still a priority for anybody seeking to save money whilst helping the environment.

Rainwater run-off from your roof can be stored in a rainwater tank and provide a valuable source of water for washing machines, flushing toilets, washing cars, irrigating gardens, cleaning of footpaths/patios etc.

Pathfinder Plumbing can install various types and styles of rainwater tank ranging from steel tanks, polyethylene, concrete or fibreglass.  All of these come in different shapes and sizes to suit your requirements.

We supply and install a wide range of rain water pumps from all the leading manufacturers including Davey & Onga.

Dependant on your budget, we offer a range of tank water level gauges and mains top up valves.

We also supply a range of underground, bladder and grey water storage tanks.

Mosquito Risks

All of our installations conform to the requirements under the Queensland Development Code, mandatory parts 4.2 & 4.3 on the importance of mosquito protection and the installation of first flush devices for rainwater tanks.

A global rise in the number of dengue fever outbreaks being reported means that the focus will be in reducing mosquito numbers in urban areas.  The Aedes aegypti mosquito – carrier of the dengue fever virus generally prefers dark, enclosed areas such as rainwater tanks.

A tank that has been installed correctly, poses no great risk.  It is the tank that has been fitted incorrectly that is a cause of concern.  There are a number of points to consider for owners of rainwater tanks, these include:

  • Earlier tank installations often incorporated a fixed screen on the overflow, which is prone to blockage and subsequent removal by tank owners.  Current Standards specify that overflows should be fitted with high-flow flap valves, which prevent blockages and maintain mosquito protection.
  • Wet/charged systems should be checked to ensure a functional drainage point was installed to prevent water pooling, creating a potential mosquito breeding site.  Ensure rain heads and flap valves are fitted on inlet pipes to prevent mosquito entry.
  • Inlet strainers should be less than or equal to 1mm mesh.
  • First flush diverters can become blocked unless regularly maintained.  Water pooling inside a blocked diverter provides a mosquito breeding site.
  • Mosquito larvae can still enter tanks where water pooling and mosquito breeding occurs in catchment areas.
  • Chironomid midges can appear similar to mosquitoes but pose a different problem.

If mosquitoes or midges are found to be breeding in a rainwater tank, then the owner, under the Public Health Act has a legal obligation to immediately rectify the situation.  A fine can be imposed if the owner is found to be negligent.

If you suspect that your rainwater tank maybe a mosquito breeding ground and wish to have it checked out by one of our experienced staff, then give Pathfinder Plumbing a call on 0448 895 588,  we’ll immediately arrange for a free no obligation site assessment.

A rainwater tank installation for your home will undoubtedly save you money over the long term.  You can also take comfort, knowing that you are contributing in a positive way to protecting the environment.  Call Pathfinder Plumbing now and arrange for a site survey.


0448 895 588

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