--- title: "2500L Poly Septic Tank — Larger Capacity | Bush Billabongs" description: "2500L three-chamber poly septic tank from Bush Billabongs — higher capacity option for larger homes and multi-bedroom builds. Supply only across NSW, QLD and VIC." lang: en json-ld: | [ { "@context": "https://schema.org", "@type": "Product", "name": "2500L Three-Chamber Polyethylene Septic Tank", "description": "Bush Billabongs 2500L three-chamber polyethylene septic tank. Higher-capacity option for larger dwellings, multi-bedroom homes and small acreage builds. 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[Home](/) 2. [Products](/products) 3. 2500L Septic Tank Larger Capacity # 2500L Septic Tank A higher-capacity three-chamber poly septic tank for larger Australian homes, multi-bedroom dwellings and small acreage builds. Self-service [pickup from our network](/shipping-and-collection). ![Bush Billabongs 2500L septic tank dimensions: 2750mm length × 1210mm width × 1180mm height](/assets/product-2500l-dimensions-CW8Vv_Gz.png)![Bush Billabongs logo](/assets/logo-DxEVICWB.png) ## Product Overview The Bush Billabongs 2500L Septic Tank steps up from our 1500L for larger households and multi-bedroom dwellings that need more daily flow capacity. Same proven three-chamber poly design, scaled up for bigger builds. Compare against the [1500L](/product) on our [product comparison page](/products). Specifications Specs FeaturesUse Cases Uses ### Technical Specifications Capacity 2,500 Litres Length 2,750 mm Width 1,210 mm Height 1,180 mm Price From $1,790 AUD (exc GST) Material Ribbed Polyethylene Chambers 3 Suitable For Larger Dwellings [Enquire About Pricing](/contact)[Compare Tanks](/products) ## Documentation Download our guides to understand how septic tanks work. [ How Septic Tanks Work PDF ](/how-septic-tanks-work.pdf)[ Function of Each Chamber PDF ](/function-of-each-chamber.pdf)[ Pre-Install Checklist PDF ](/septic-pre-install-checklist.pdf) ## Product Gallery See our 2500L septic tank in real Australian settings. ![Bush Billabongs 2500L septic tank dimensions: 2750mm length × 1210mm width × 1180mm height](/assets/product-2500l-dimensions-CW8Vv_Gz.png)![Bush Billabongs logo](/assets/logo-DxEVICWB.png) ![Bush Billabongs 2500L three-chamber polyethylene septic tank — angled product view](/assets/product-2500l-clean-1-C8EdMd7s.jpg)![Bush Billabongs logo](/assets/logo-DxEVICWB.png) ![Bush Billabongs 2500L poly septic tank — front view showing inlet and outlet ports](/assets/product-2500l-clean-2-CWqktIYX.jpg)![Bush Billabongs logo](/assets/logo-DxEVICWB.png) ![2500L septic tank accessory kit — lids, seals, fittings and elbows](/assets/product-2500l-accessories-B3cLf-Qt.jpg)![Bush Billabongs logo](/assets/logo-DxEVICWB.png) ## Important — Supply Only Bush Billabongs supplies septic tanks only. We do not provide installation, excavation, plumbing or council approval services. Please ensure you engage a licensed plumber for installation and check your local council requirements before purchasing. Available for pickup in [NSW](/septic-tanks-nsw), [QLD](/septic-tanks-qld), and [VIC](/septic-tanks-vic). ## 2500L Septic Tank — From $1,790 (exc GST) Get in touch to confirm availability and arrange pickup from your nearest location. [Enquire Now](/contact) [![Bush Billabongs logo — septic systems and rural solutions](/assets/logo-DxEVICWB.png)](/) Supplying affordable poly septic tanks — 1500L for tiny homes and granny flats, 2500L for larger family homes and acreage builds. Pickup across NSW, QLD, and VIC. Products [All Septic Tanks](/products)[1500L Septic Tank — from $949](/product)[2500L Septic Tank — from $1,790](/product/2500l-septic-tank)[About Us](/about)[FAQ](/faq)[Blog](/blog)[Guides](/guides)[Partners](/partners)[Contact](/contact) Service Areas [New South Wales ](/septic-tanks-nsw)[Queensland ](/septic-tanks-qld)[Victoria ](/septic-tanks-vic) Contact [0468 462 047 ](tel:+61468462047)[WhatsApp us ](https://wa.me/61468462047)[info@bushbillabongs.com.au ](mailto:info@bushbillabongs.com.au) Policies [Terms and Conditions](/terms-and-conditions)[Privacy Policy](/privacy-policy)[Returns and Refunds](/return-and-refund-policy)[Shipping and Collection](/shipping-and-collection)[Disclaimer](/disclaimer) © 2026 Bush Billabongs. All rights reserved. ABN: 97 146 094 166 · Supply only. No installation services. Call now