Septic Tanks To Sewer Connections
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Community Sewerage Program Plumbers
The Community Sewerage Program is being rolled out across many Northern and Eastern suburbs and it will bring many benefits to properties and the surrounding environment.
Switching from a septic system to a sewer connection is a significant decision for homeowners, influenced by various factors including cost, environmental impact, and system efficiency. The investment in converting a septic tank to a sewer system involves understanding the associated costs, which vary depending on location, property size, and the condition of existing infrastructure. Once your area is ready to go ahead, you will need to hire a plumber.
Jet Plus Plumbing is on the list of plumbers that Yarra Valley Water has supplied. We have attended information nights and are skilled with the specialist work required for the septic to sewer changeover.
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Finding The Right Septic To Sewer Plumber
Following these suggestions and working with a reliable plumber ensure a successful connection to our piped sewerage system.
Professional Septic to Sewer Conversion in Melbourne
When a new sewer network reaches your area, your property may need more than a simple pipe connection. The work can involve locating existing drains, checking the connection point, modifying property sewer pipework, connecting to a pressure sewer unit or gravity connection, and making the redundant septic system safe.
Jet Plus Plumbing works with homeowners, property owners and project coordinators across Melbourne’s outer eastern and northern suburbs. We can explain what plumbing work is required and help you understand the next steps before excavation begins.
What is Involved in a Septic to Sewer Connection?
- Complete compliance requirements. Relevant below-ground sanitary drainage work may require water authority consent, inspection and certification before the excavation is backfilled.
- Review the sewer connection information. We confirm the available connection point, system type and any requirements from the relevant water corporation.
- Inspect the existing property drainage. We identify the septic tank, house drains, inspection points and the most practical route for the new connection.
- Connect the property plumbing. Depending on the site, this may involve a gravity connection or connecting the property drain to a pressure sewer unit.
- Decommission the old septic tank. The redundant tank must be emptied, cleaned and made safe so it cannot continue to be used or create a contamination risk.
Pressure Sewer and Gravity Sewer Connections
Properties are generally connected to a new sewer network through either a gravity sewer system or a pressure sewer system. The water corporation and its sewer construction contractor determine the approved connection type and connection-point location. Jet Plus Plumbing completes the private plumbing work on your side of the connection point.
Gravity Sewerage Systems
A gravity sewer system uses pipes with a gradual downward fall to carry wastewater away from your property without a pump. The property connection point is usually constructed just inside the boundary, often around 300 mm inside the property line, with the exact location selected to suit the existing septic tank, landscaping, retaining walls, land slope and the practical route of the private plumbing.
Yarra Valley Water is responsible for the public gravity sewerage system and the connection point. The property owner is responsible for the plumbing on the property side, including decommissioning the septic tank and connecting the existing sanitary drainage to the new sewer connection point.
Download the Yarra Valley Water Gravity Sewerage Systems fact sheet (PDF) for information about connection points, responsibilities, ongoing charges and financial assistance.
Pressure Sewer Systems
A pressure sewer system uses a small pumping unit on the property to move household wastewater through a pressure sewer pipe to the network in the street. Pressure sewer is commonly used where the land levels, distance or site conditions do not allow wastewater to flow naturally downhill through a gravity connection.
The pressure sewer unit includes an underground storage tank, pump, level sensors, boundary valve and control panel. Yarra Valley Water is responsible for the pressure sewer system components and their ongoing maintenance. The property owner is responsible for the plumbing on the property side of the connection point, including connecting the property drain and decommissioning the existing septic tank.
Most pressure sewer pump units are installed underground. The pump lid, boundary valve lid and control panel may be visible above ground. The pump usually operates for around 15–20 minutes per day, depending on household water use. The system also has storage capacity for temporary power failures or emergencies.
Download the Yarra Valley Water Pressure Sewer System fact sheet (PDF) for information about the pump unit, construction, responsibilities, electricity costs and what happens during a power failure.
We assess the existing property drainage and follow the approved sewer connection information supplied for your property. The correct plumbing approach depends on the connection point, pipe levels, access, existing pipework and the approved sewer design.
Septic Tank Decommissioning
Once a property is connected to mains sewer, the old septic tank should not simply be abandoned. It needs to be properly decommissioned so it cannot collect wastewater, collapse or contribute to groundwater and soil contamination.
Decommissioning commonly involves arranging pump-out, cleaning the tank, disconnecting and making safe the old plumbing, then removing or decommissioning the tank in accordance with the relevant council and Victorian guidance. We can explain the plumbing component of the work and coordinate the required site steps with the appropriate contractor.
For general Victorian guidance, see the Environment Protection Authority guidance on managing onsite wastewater systems.
Why Connect from Septic to Sewer?
- Move to a modern reticulated sewerage system where it is available.
- Reduce reliance on an ageing septic tank and onsite wastewater system.
- Help prevent wastewater odours, slow drains, pooling and system failures.
- Make the property’s wastewater arrangements easier to understand and maintain.
- Support future property improvements, subject to the relevant approvals and site requirements.
Older or poorly maintained onsite wastewater systems can create risks for public health, waterways and the environment. The Victorian Government explains that councils, water corporations and the EPA each have responsibilities in managing onsite wastewater systems, so the exact process can vary by location.
Do I need a Licensed Plumber?
Yes. Septic to sewer work involves sanitary drainage, sewer connections and decommissioning an onsite wastewater system. Use a licensed plumber who understands below-ground drainage, water authority requirements and the inspection process.
The Building and Plumbing Commission identifies connections from existing septic systems to reticulated sewer systems as work that can require a below-ground sanitary drainage inspection. Read the Building and Plumbing Commission drain inspection guidance for more information.
How Much Does a Septic to Sewer Conversion Cost?
Property owners are responsible for hiring a licensed plumber to decommission the existing septic tank and connect the property’s plumbing to the sewer connection point.
Costs can vary depending on the approved sewer connection type. For gravity sewer connections, private plumbing work may typically cost around $5,000 to $15,000. For pressure sewer connections, Yarra Valley Water indicates that the property-owner plumbing component is often approximately $3,000 to $6,000. The final price depends on site access, distance, excavation, existing plumbing and the requirements of the water corporation. A site assessment is the best way to confirm the likely cost.
The water corporation may cover the public sewer infrastructure and connection-point construction under a local sewerage program. The property owner remains responsible for the private plumbing connection and septic tank decommissioning. Confirm the specific responsibilities for your property before work starts, as costs can vary by sewer project and connection type.
For properties in the Yarra Valley Water service area, the Yarra Valley Water Community Sewerage Program explains the difference between gravity and pressure sewer connections, including indicative costs and owner responsibilities. You can also use the Victorian Government’s water corporation finder.
Boosting Property Value with a Sewer System
Connecting a property to a reliable reticulated sewer system can make it more attractive to future buyers by removing the day-to-day responsibilities and risks associated with an ageing septic tank. A sewer connection provides a dependable way to manage household wastewater and can help reduce concerns about septic tank maintenance, pump-outs, leaks, odours and backups.
Being connected to sewer may also give homeowners more flexibility for future improvements, such as adding an extra bathroom or renovating the home. Any proposed extension still needs to meet planning, building and plumbing requirements, and the capacity of the existing private drainage should be checked before work begins.
For property owners, the practical benefit is simpler wastewater management, fewer septic-system obligations and a clearer plumbing arrangement for future maintenance or sale. The value impact will vary by property and local market, so sewer connection should be viewed as a long-term infrastructure improvement rather than a guaranteed increase in sale price.
How Long Does The Work Take?
Many straightforward septic to sewer plumbing connections can be completed in one day. More involved properties may take longer when excavation, difficult access, deep drains, pipe repairs or additional inspections are required. We confirm the likely timeframe after assessing the site and approved connection requirements.
Signs Your Old Septic System Needs Attention
If you are waiting for a sewer connection, contact a plumber if you notice slow drains, sewage smells, wet areas around the absorption field, wastewater surfacing, recurring blockages or toilets that struggle to flush. These can indicate a failing or overloaded onsite wastewater system.
For urgent wastewater or sewer problems, see our emergency plumbing service. We also help with sewer repairs, drain cleaning and blocked drains.
Why Choose Jet Plus Plumbing?
- Licensed and insured plumbing service.
- Melbourne-based team serving homes and businesses across the metro area.
- Clear advice about the plumbing work required.
- Experience with septic decommissioning and sewer connection projects.
- Practical coordination with water corporation and site requirements.
- Prompt communication from quote through to completion.
Ready to Connect From Septic to Sewer?
Send us the sewer connection details for your property and we can assess the plumbing work required. Jet Plus Plumbing provides septic to sewer connections across Melbourne.
Phone: 0421 725 624
Email: info@jetplusplumbing.com.au
Available: Monday–Friday 7 AM–5 PM; 24/7 emergency service
Jet Plus Plumbing Pty Ltd | ABN 97 660 015 789 | Licensed Plumber | Fully Insured | Serving Melbourne Since 2017
Frequently Asked Questions
Property owners usually pay a licensed plumber to decommission the septic tank and connect the property plumbing to the sewer connection point. The cost is typically $5,000 to $15,000, depending on access, distance, excavation and existing plumbing compliance. Contact Jet Plus Plumbing for a site assessment: 0421 725 624.
Yes. We can assess the existing property drainage, connect the plumbing to the approved sewer connection point or pressure sewer unit, and help arrange the safe decommissioning of the redundant septic tank.
Yes, once connected to mains sewer, your septic tank must be decommissioned by a licensed plumber to meet council regulations.
The tank must be properly decommissioned. This generally involves pumping out and cleaning the tank, disconnecting the old plumbing and making the tank safe in accordance with relevant Victorian and local requirements.
No. A gravity sewer relies on fall so wastewater flows to the sewer network. A pressure sewer uses a pump and collection tank to move wastewater where gravity flow is not practical.
Requirements vary by water corporation and project. We can review the information supplied for your property and explain which approvals, consent numbers, inspections or documents are needed before the work begins.
Yes. Call 0421 725 624 or contact Jet Plus Plumbing with your sewer connection information, property address and any photos or plans you have available.
