Aerated Wastewater Treatment System (AWTS) Sales & Installation

From start to finish we deliver the whole solution, giving you one less thing to worry about

Site Assessment and Inspection

We can assess your site and recommend the right system for you based on your site access, land size, slope, soil, surrounding waterways, number of people in the household and your Council’s regulations.


Pre-Purchase Inspections

If you plan to purchase a property that has an Aerated Wastewater Treatment System (AWTS) or a septic tank,  call us for an inspection to determine its condition, how well it is functioning and whether any repair work is necessary. Pump out and repairs can be costly and the system may not be compliant with Local Council Regulations.

AWTS Servicing

It is a requirement under the NSW Health Act that AWTS are serviced every three (3) months by an approved agent such as BluenGrey, and reports submitted directly to Council. BluenGrey’s Service Technicians are based locally throughout South East NSW providing you with reliable and professional servicing.


DA paperwork

BluenGrey can provide, complete and submit all required application forms on your behalf to support your DA for onsite wastewater management, and can also produce the Geotechnical Report that Council may require.

AWTS Installation

We take responsibility for the management and installation of your Aerated Wastewater Treatment System (AWTS) from start to finish, including site access, Council inspection, tank location, liaising with your builder, excavation, trenching, irrigation or trench installation and system commissioning making sure the system ready to go.

What type of wastewater or septic system is right for you?

Bluengrey can design and install all types of wastewater and septic systems. We can help you to decide what system is right for you by organising a free site inspection. Call 1300 821 821, email or send us a message online now.

Aerated Wastewater Treatment Systems

For those who live in areas not connected to a sewer. This is a “mini treatment plant’ using bacteria and a disinfection agent to turn your wastewater into safe, clean water that is irrigated onto your gardens.

Septic Tank Systems

For those who live in areas not connected to a sewer, but who don’t have enough room for an on-site disposal system. This is a septic tank that will need to be pumped out at regular intervals.

Septic Pumping Stations

A holding tank installed on the property which collects wastewater from the house; once the tank is full to a certain level it automatically pumps out to the sewer main, normally located in the street.

Wastewater/Septic Disposal Methods

If you have or are planning an onsite wastewater management system like an AWTS, there are several options for how the wastewater is irrigated onto your gardens or disposed of on your property.

Need your septic system serviced or pumped out?

Don't delay – it's is a requirement under NSW Health that all Aerated Wastewater Treatment Systems (AWTS) are serviced every three months. BluenGrey keeps your system working with good advice and reliable, professional servicing.

Rod's expertise is exceptional

We would like to thank Rod for all his guidance and patience while we were investigating water and sewerage systems, and asking a myriad of questions. We had never built before and knew nothing about what we needed for water and sewerage, so Rod was a fountain of knowledge. His expertise has been exceptional. Both the water tank and the sewerage system were installed hassle-free and passed Council inspection without any issues. We look forward to an ongoing relationship with Rod when he visits to do the necessary checks and balances of our sewerage system. 

– Melissa and Scott Jobson, Tapitallee

BluenGrey are a great ‘one stop shop’ service at competitive prices

Having made the decision to move to a semi-rural property at Yass we investigated options for our grey and rain water requirements. We approached BluenGrey who provided a range of options for us to select from. Their personal and professional approach, which included on-site meetings, ultimately led us to choose to proceed with BluenGrey who offered a ‘one stop shop’ service at competitive prices. The installation was trouble free and their follow-on service and advice has been excellent. We are completely satisfied with the BluenGrey services and have no hesitation in recommending them to future customers."

– Col and Anne Eade 

BluenGrey were very helpful in every respect

 From our initial conversations through to final installation BluenGrey were very helpful in every respect, and courteous and obliging with regards to my requirements. Work commenced on time as planned with pictures texted through to us during the installation showing progress. All in all job a well done with zero issues. I would recommend BluenGrey to anyone considering waste disposal units and / or rainwater tanks.

– Steven Hawke, Longbeach

I can't recommend BluenGrey highly enough

BluenGrey are an absolute pleasure to deal with. Their Service Technicians are always professional and reliable, and I like to know that our wastewater system is looked after so we're always meeting our Council's regulations. I feel reassured knowing I can call on them should I have any worries about our system, and especially that they can respond to emergencies.

– Emma, Shoalhaven

About BluenGrey

Since 1986, BluenGrey (formerly known as Garden Master & Rain King) has specialised in wastewater, rain tank and water pump sales.

BluenGrey serves the South East NSW region including the Eurobodalla, Shoalhaven, Palerang, South Coast, Far South Coast, ACT and surrounds. Our team of Service Technicians are located across South East NSW for local, reliable and professional service.