--- title: "Bush Billabongs | Septic Tanks from $949" description: "Australian-supplied poly septic tanks — 1500L from $949 for tiny homes, 2500L from $1,790 for larger builds. 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Simple, reliable, and built for Australian conditions. [Enquire About Pricing](/contact)[View Our Tanks](/products) Available in: [NSW ](/septic-tanks-nsw)[QLD ](/septic-tanks-qld)[VIC ](/septic-tanks-vic) ## What We Supply We supply [1500L](/product) and [2500L](/product/2500l-septic-tank) three-chamber poly septic tanks — compact for tiny homes and granny flats, or larger for multi-bedroom rural builds. Quality tanks, fair prices, and convenient [self-service pickup](/shipping-and-collection). ### Perfect for Small Dwellings Ideal for tiny homes, granny flats, cabins, and off-grid builds. ### Proudly Australian Australian born company servicing industries across NSW, VIC and QLD. ### 1500L & 2500L Tanks Two sizes of reliable three-chamber poly tanks for everything from tiny homes to larger family builds. ## Who It's For Our 1500L and 2500L poly septic tanks are designed for individuals building or upgrading dwellings across regional Australia — from tiny homes to larger family builds. - Tiny home owners (1500L) - Granny flats and cabins (1500L) - Off-grid and eco builds (1500L or 2500L) - Larger family homes & acreage (2500L) - Multi-bedroom rural dwellings (2500L) [Compare Our Tanks](/products)[Read Our FAQ](/faq) ![Remote working site in Australian outback — ideal for Bush Billabongs septic tanks](/assets/carousel-remote-site-6hoceU6N.jpg) ![Australian rural shed on farmland — septic tank for sheds](/assets/carousel-shed-CnAs_q1F.jpg) ![Remote dwelling in Australian bushland — off-grid septic solution](/assets/carousel-remote-dwelling-kZy4LgUm.jpg) ![Tiny home in Australian bush — 1500L septic tank for tiny homes](/assets/carousel-tiny-home-BJY_NIlX.jpg) ![Bush cabin in forest clearing — septic tank for cabins](/assets/carousel-cabin-JIBgj3dT.jpg) Previous slide Next slide ## How It Works Getting your septic tank is straightforward. Here's how it works. 01 ### [Get in Touch](/contact) Send us an enquiry with your location and requirements. 02 ### Receive a Quote We'll provide pricing and availability for your area. 03 ### Organise Pickup Once confirmed, we arrange a pickup location or delivery if available. ## Why Bush Billabongs? We're a **supply-only** business — no installation upsell, no middlemen, no showroom overheads baked into the price. Just quality septic tanks at a fair price, ready for collection or freight to your block. Our [1500L tank starts at $949 AUD](/product) and our [2500L tank starts at $1,790 AUD (exc GST)](/product/2500l-septic-tank) — compared with $1,200–$3,000+ charged by traditional plumbing suppliers and hardware stores. Same proven design, a fraction of the markup. Both tanks are **three-chamber polyethylene** units. The 1500L is sized for tiny homes, granny flats, cabins and most 1–2 bedroom dwellings at just **61 kg empty** — it loads onto a standard ute and slides off by hand. The 2500L (2,750 × 1,210 × 1,180 mm) steps up for larger family homes and multi-bedroom rural builds. [Compare both tanks side-by-side](/products). We offer **self-service pickup** across [NSW](/septic-tanks-nsw), [QLD](/septic-tanks-qld) and [VIC](/septic-tanks-vic), plus freight to most regional postcodes on request. Australian owned and direct from the manufacturer — that's the whole model. ## Who Our Tanks Are Built For Our 1500L and 2500L tanks are sized and built for the kinds of small-dwelling, rural-residential and acreage builds that dominate regional Australia. If your project sits in one of these categories, you're in the right place. ### Tiny home owners Permanent and semi-permanent small dwellings on rural or rural-residential land. ### Granny flat projects Secondary dwellings sharing a parent block — a simple path to extra accommodation. ### Off-grid and rural builds Solar-powered properties where a passive, no-electricity septic system is the natural fit. ### Weekend cabins and retreats Coastal, alpine and bush cabins for personal use or short-stay accommodation. ### Shed-to-home conversions Existing rural sheds being upgraded with kitchens, bathrooms and full residential plumbing. ### Rural lifestyle blocks Owner-occupied dwellings on acreage where mains sewer is never coming. ## How the Three-Chamber System Works Both our 1500L and 2500L tanks separate waste across three chambers — settlement, digestion and clarification — producing clarified effluent that flows safely to your absorption trench. No electricity required. Pump-out every 3–5 years is all the maintenance it needs. [See exactly how it works →](/how-our-tanks-work) ## Common Questions A few of the questions we hear most often. For more, see our [full FAQ](/faq), browse our in-depth [septic tank guides](/guides), or read the [blog](/blog). ### Do I need a plumber to install a septic tank? Yes. A licensed plumber is required to install and connect any septic tank in Australia. We're supply-only — we provide the tank, and your plumber handles excavation, connection and the absorption trench. They'll also arrange the relevant council inspection on your behalf. ### How long does delivery take? Self-service pickup is typically available within 1–3 business days of order confirmation. Freight to regional postcodes usually takes 3–10 business days depending on your location. Get in touch via our contact form and we'll confirm a pickup window or freight quote for your address. ### What states do you supply to? We supply across NSW, QLD and VIC, with self-service pickup locations and freight to most regional postcodes in those states. Visit the dedicated state pages for local detail and pickup areas. ### Which size do I need — 1500L or 2500L? The 1500L tank suits most 1–3 bedroom dwellings, tiny homes, granny flats and cabins. The 2500L tank is sized for larger family homes, 4+ bedroom rural dwellings and acreage builds with higher daily water use. Use our size calculator or compare both tanks side-by-side to choose. ### How long does a poly septic tank last? A well-maintained polyethylene septic tank — 1500L or 2500L — typically lasts 30–40+ years. Polyethylene resists corrosion and ground movement far better than older concrete or steel tanks. Routine pump-outs every 3–5 years and avoiding harsh chemicals down the drain will keep it running for decades. [Ask Us a Question](/contact)[Read the Blog](/blog) Free Resources ## Free Septic Planning Downloads Two PDF guides we put together for anyone planning a septic install — no email signup, just download. ### Septic Tank Setbacks Cheat Sheet Australian planning distances at a glance — from boundary fences to bores. Use it before you stake out the tank position. [Download PDF](/septic-setbacks-cheat-sheet.pdf) ### Pre-Install Checklist (6 stages) From council approval to commissioning sign-off — every box to tick before, during and after install. [Download PDF](/septic-pre-install-checklist.pdf) ## Bought a tank from us? Leave a quick review We're a small Australian supply-only business. A 30-second Google review from a real customer helps the next tiny-home builder trust us — far more than any marketing we can do. [Leave a Google Review](https://www.google.com/search?q=Bush+Billabongs+septic+tanks)[Read customer reviews](/reviews) ## Ready to Get Started? Send us an enquiry and we'll get back to you with pricing and availability for your location. Read our guides on [septic tanks for tiny homes](/blog/do-you-need-a-septic-tank-for-a-tiny-home) and [1500L tank pricing](/blog/how-much-does-a-1500l-septic-tank-cost). [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