Septic System Replacement FAQs
Frequently Asked Questions
Septic Tank System Replacement
As owners of onsite wastewater management systems it is very easy to forget about our systems and just presume they are working correctly. If you have an original septic system on your property, these do not require regular servicing so unfortunately when they do have issues they are often not noticed until it is too late and contamination has already entered the environment.
Often, due to council standards, these will need to be replaced by an Aerated Wastewater Treatment System (AWTS)
See below for some frequently asked questions regarding Septic System Replacement.
If your sinks, showers, and toilets drain freely, and your yard stays dry and odourless, your system is likely operating as it should.
A properly functioning septic system should be able to treat all the wastewater from your home without making any above-ground indication or emitting any offensive odours on your premises.
There are a few clear signs that your septic tank might need attention or even a septic system upgrade.
- Bad odours around the tank or nearby yard
- Wet or spongy areas forming above or around the drainage area
- Gurgling or strange noises in your plumbing
- Slow draining from sinks, showers, or toilets
- Lush, bright green grass growing over the septic tank or drainfield, even during dry weather
If you notice one or more of these, it may be time to contact a wastewater professional to inspect your onsite wastewater management system.
There are many wastewater engineers servicing Tasmania.
EnviroTas has worked with a range of them across Hobart, Launceston, and regional areas, and can recommend qualified contacts suited to your project.
You can also visit our Wastewater Engineers Tasmania page for a list of professionals we’ve partnered with.
Most septic systems last between 20 and 40 years, depending on how they are used and maintained.
Regular servicing, desludging, and proper care will help extend the lifespan of your wastewater system and prevent costly replacements in the future.
If you suspect your system is not performing properly, it’s best to speak with a Wastewater Engineer or contact EnviroTas directly.
We offer inspections, advice, and wastewater services throughout Tasmania so that you know the status of your system and the next steps that you need to take.
Replacing a septic system in Tasmania involves several key steps:
- Assessment and Design: A Wastewater Assessment and Design Report will be prepared by a qualified wastewater engineer. This way, the system will be well sized to suit your site conditions, soil type and your household use.
- Permits: You’ll need wastewater approval from your local council before installation. EnviroTas can assist with the paperwork to make sure everything meets Tasmanian regulations.
- Installation: A licensed plumber installs the system in line with the approved design. Our team coordinates with your installer to make sure the process runs smoothly from delivery to set-up.
- Servicing: Regular wastewater system servicing keeps the system compliant and efficient. Ongoing maintenance helps prevent costly issues and ensures your system continues to perform well for years.
The type of wastewater treatment system best suited to your property is determined by a Wastewater Engineer.
They’ll assess your soil, site slope, water table, and property size before recommending the right system design and capacity. EnviroTas can help implement the chosen system once your report is complete.
No, a separate soil report usually isn’t necessary.
This testing is generally included as part of the Wastewater Assessment and Design Report carried out by your Wastewater Engineer.
Yes. An AWTS, also known as a Secondary Treatment System, is a modern and more sustainable alternative to traditional septic tanks.
This alternative is often selected for septic system replacement projects because it provides a higher degree of treatment and higher level of environmental protection.
The EnviroTas-AS system is an aerated wastewater treatment system built specifically for Tasmanian conditions. It treats wastewater to a much higher standard and allows for safe irrigation disposal, making it a practical option for upgrades or new installations.
You will need to get wastewater approval from your local council before installation can begin.
This process examines the design, size and siting of the system to ensure compliance with state regulations.
EnviroTas can assist you in getting your documentation together and submitting it for you to make it easier.
It is dependent on the make and model of the system.
All wastewater systems require ongoing servicing as part of their council approval. This ensures they continue to operate safely and meet local standards. Across the state, wastewater systems Tasmania are held to the same requirements, with servicing schedules depending on the type of system installed.
The EnviroTas-AS system is accredited for six-monthly servicing, which means lower ongoing costs compared to most other systems that need quarterly maintenance. Our team provides wastewater system servicing across Hobart and wider Tasmania to keep your system compliant and working efficiently.
