Slimline Poly Water Tanks
| Tank Model | Litres | Imp. Gallons | Height | Width | Length |
|---|
| TSL160 (QLD & NSW) | 660L | 145G | 0.94m | 0.71m | 1.43m |
| TSL200 (VIC & SA) | 1000L | 220G | 1.73m | 0.45m | 2.03m |
| TSL220 (VIC & SA) | 1000L | 220G | 2.03m | 0.61m | 1.26m |
| TSL230 | 1000L | 220G | 1.61m | 0.61m | 1.49m |
| TSL440 | 2000L | 440G | 2.15m | 0.71m | 2.21m |
| TSL660 | 3000L | 660G | 2.14m | 0.80m | 2.48m |
| TSL880 (NSW, VIC & SA) | 4000L | 880G | 2.10m | 0.95m | 2.99m |
| TSL1100 | 5000L | 1,100G | 2.10m | 1.06m | 3.34m |
| UD550 (QLD & NSW) | 2100L | 462G | 1.18m | 1.08m | 2.25m |
Australian-made since 1989. AS/NZS4766 compliant. Learn more about Bushmans.
Key Benefits of our slimline tank range
- Wide range of sizes from 660L to 5,000L
- Narrow design fits where round tanks can’t
- Built from UV-resistant, food-grade poly
- Available in a range of colours to suit your home
- Backed by over 30 years of local manufacturing experience
- Slimline tank delivery available across Australia
Preparing for Your Slimline Tank Delivery
When you choose a Bushmans slimline water tank, we don’t just stop at manufacturing—we also ensure your delivery and installation run smoothly. Our experienced drivers and installation team follow strict safety and site preparation guidelines to make the process easy and stress-free.
In this short video, you’ll learn how to:
- Ensure your site has clear and safe access for delivery trucks
- Prepare your base area so the tank can be safely positioned
- Understand what assistance may be needed on delivery day
- Get your plumbing and fittings ready to speed up installation
Bushmans provides a full water tank delivery in Australia, so you know exactly what to expect. From site checks to unloading procedures, we’re committed to making sure your slimline tank is delivered and installed safely—protecting your property and your investment.
Slimline Water Tank Reviews from Our Customers
Sue S — 3000L Slimline Tank in Slate Grey
“I looked online at a few options, and Bushmans stood out as the high-quality choice. After reading reviews, I decided to buy my tank online, the process was super simple. The delivery team were fantastic, helping me position the tank and install the fittings. I really appreciated the driver’s support on the day. Overall, the whole experience was excellent, and if I ever need another tank, I’ll definitely go with Bushmans again.”
Julia MayoRamsay — Ozpoly Review
⭐ ⭐ ⭐ ⭐ ⭐ (March 2022)
“Great tanks and great service. They took a while to get here FNQ due to COVID 19 but I am very happy with them. Now I can catch some of that rain!”
Shealagh Mollee — Bushmans Dalby Review
⭐ ⭐ ⭐ ⭐ ⭐ (May 2024)
“Fantastic customer service from the office staff to the delivery driver. The tank was delivered on time by Jake. Thank you for a seamless process from the Bushman’s team. An added bonus…Bushman tanks are wholly Australian-owned and operated. I would highly recommend Bushman tanks, they certainly go the extra mile with customer service and a great product”
David Meijer — Bushmans Orange Review
⭐ ⭐ ⭐ ⭐ ⭐ (April 2023)
“The best customer service experience by Bushmans Tanks, from the time of order communicating with yourself, receiving text messages on order updates, the delivery driver calling me on the day of delivery and giving me a delivery time window of between 1.00pm and 2.00pm and he actually arrived at 1.30pm. I highly recommend Bushmans Tanks for the quality of their products and customer service. Thank you very much.”
Advantages of Slimline Water Tanks for Urban Rainwater Harvesting
Bushmans’ slimline water tanks are purpose-built for tight spaces, offering reliable water storage without taking up unnecessary room. Unlike traditional round poly tanks, slimline tanks are designed to fit down the side of a house, against a fence, or next to a shed—making them ideal for urban homes, small backyards, and unit blocks.
Smart Use of Space with Lasting Durability
With the best ratio of water storage to footprint, slimline tanks are ideal where space is limited. They sit neatly alongside buildings and don’t intrude into outdoor areas. Made from Bushmans’ Sunsmart® UV-stabilised polyethylene, our slimline poly water tanks are tough, durable, and built to handle the harsh Australian sun. All tanks come with a 10-year guarantee.
Rainwater harvesting in the City
Slimline tanks make it easy to capture rainwater from your roof for use around the home or garden. Whether you’re topping up the pool, watering plants, or flushing toilets, you’ll reduce mains water use and lower your bills. In cities like Sydney, Melbourne, Brisbane, Adelaide, and Canberra, Bushmans’ compact water tanks support efficient rainwater harvesting while helping to reduce stormwater runoff—contributing to more sustainable water use in built-up areas.
How Do You Maintain and Clean a Slimline Water Tank?
While Bushmans’ slimline water tanks are designed for low maintenance, regular checks will help ensure your tank performs well over the long term—especially in Australia’s variable climate.
- Inspect your tank, pipes, and fittings every 3–6 months
- Keep gutters and strainers clear of leaves and debris
- Ensure the inlet, overflow, and outlets are not blocked
- Check for UV damage or signs of wear in high-exposure areas
- If using pumps or filters, give these a regular once-over
Over time, organic matter like leaves, dust, or pollen can make its way into your tank, forming a layer of sediment or sludge on the base. While this build-up is common and usually slow, it’s best to remove it every few years—especially if your tank is used for household purposes like laundry, toilet flushing, or irrigation.
- Drain the tank fully before cleaning to access the inside safely
- Use a hose or pressure washer to rinse the walls and base—avoid using detergents or harsh chemicals, as these can contaminate your water supply
- Gently scrub with a soft broom to remove stubborn sediment if needed
- Flush out the dirty water completely after cleaning
- Inspect filters and first flush diverters, and clean or replace them as needed
After cleaning, allow the first flush of rainwater to bypass the tank using a diverter system—this helps prevent any contaminants from entering the clean tank. If you’re unsure or if the tank is large and difficult to access, consider hiring a professional tank cleaning service.
How to Choose the Right Slimline Tank Size
Not sure which slimline water tank is best for your property? Watch our short video to learn the vital steps for selecting the right tank for your home, garden, farm, or commercial site.
In the video, Bushmans explains:
- How to calculate water needs for households, gardens, or livestock
- How roof area and rainfall affect collection capacity
- Why tank sizing is essential for a secure and reliable water supply
- How Bushman’s free online water tank calculator helps you make the right choice
Choosing the right slimline rainwater tank ensures you’ll capture enough water, reduce mains supply costs, and have peace of mind knowing you’re storing water safely in one of Australia’s driest climates.
Slimline Rainwater Tank Capacities
Our range of slimline water tanks come in a range of capacities – from 660L to 5,000L – allowing for a wide range of applications, from being installed at the back of your residential home or in your garden, to the sides of a commercial building.
The 660L slimline water tank is our smallest slimline tank available, which is perfectly suited to smaller homes where there isn’t a lot of space available. This super tank is of a shorter height than the other slimline tanks, coming in at just 0.92 meters.
You can learn more about our 660L slimline water tank here.
This 1,000-litre modular slimline rainwater tank has a specific design: it allows the user to easily increase the storage capacity by attaching any number of additional modules of the same size and design. This means that you can add as many of these modular slimline tanks to your water tank system as your space will allow.
This slimline tank is tall for its storage capacity, standing at 2.08 meters, but has a relatively short length at just 0.81 meters. This makes the 1,000-litre modular slimline rainwater tank perfect for installing along the sides of a building.
You can learn more about our 1,000L modular slimline water tank here.
While the Bushman Tanks range of water tanks contains two slimline tanks with a capacity of 1,000L, they differ in design and space dimensions. This particular version of the 1,000-litre slimline tank (with the product code TSL220) is the taller of the two slim water tanks, with a height of 2.03 meters in size, but has a shorter length. The super slim tank with these dimensions is only available in South Australia, Victoria and the Northern Territory.
You can learn more about our 1,000L slimline water tank (TSL220) here.
This is the second option available for a 1,000L capacity slimline water tank. While being able to store the same volume of water as the TSL220 model, this slimline water tank is slightly shorter standing at just 1.62 meters. It, however, makes up for it with a greater length. Both the TSL220 and TSL230 models have a similar width of 0.61 meters and 0.62 meters respectively.
You can learn more about our 1,000L slimline water tank (TSL230) here.
Our 2,000L slimline water tank allows for even more water storage than the smaller slimline tanks available, but it provides the benefit of being compact enough to squeeze into tight spaces in urban or residential areas. While maintaining its slim design, this model’s slim water tank has a longer length than other slimline tanks in our range, with a length of 2.29 meters.
You can learn more about our 2,000L slimline water tank here.
In the instance where there is limited height to install a water tank, the underdeck tank is optimal, allowing small farms and domestic households to take advantage of rainwater harvesting. The underdeck water tank allows for the option to store water under the deck, thus offering a reasonable water storage capacity whilst taking up minimal space. The 2,100-litre underdeck tank is rectangular in structure and can be used singularly when space is restricted. If space is somewhat tight but spacious enough, multiple underdeck tanks can be placed next to each other to significantly increase water storage volume whilst utilising every inch of space in the most efficient manner.
For detailed information on Bushman’s underdeck tank, please see here.
This 3,000L slimline water tank has the same design as its 2,000L counterpart, but with even larger dimensions, for when there is more space available. As with the other slimline water tanks in our range, this water tank comes in a range of colour options in order to best suit the aesthetic of your building. This particular model is widely available across Australia.
You can learn more about our 3,000L slimline water tank here.
Our 5,000 slimline water tank is the largest slimline tank available in our range, allowing for the highest volume of water storage while maintaining a slim design in order to fit into those tight spaces. You’ll find that this tank isn’t much taller than its slightly smaller counterparts, but is rather a longer slimline water tank, with a length of 3.34 meters.
You can learn more about our 5,000L slimline water tank here.
Slimline water tanks available across Australian states
Bushman’s slimline tanks are available in major cities across Australia, including Sydney, Melbourne and Brisbane. Click on the products above to request a quote, or try contacting one of our tank stockists in your region. View our water tank price ranges.