Slimline water tank installed beside a Tasmanian home

Space-saving water storage

Slimline Water Tanks

Space-saving water storage for narrow sites, available from 1,575 to 3,000 litres and made in Tasmania from food-grade polyethylene.

Made in Tasmania
10 year warranty
Manufactured to AS/NZS 4766
32 years of experience

Find the Right Slim Line Water Tank

Designed for narrow spaces beside homes, sheds and boundaries, our slim line tanks provide practical water storage without taking up valuable outdoor space.

Tasmanian Made Slim Line Tanks

Built for Tasmania. Designed to Fit.

Our slim line water tanks are manufactured in Tasmania using premium Australian-standard, food-grade polyethylene. Their narrow profile makes them ideal for homes and properties where space is limited.

  • Manufactured locally in Tasmania
  • Complies with Australian Standards AS/NZS 4766 and AS/NZS 4020
  • Food-grade polyethylene suitable for drinking-water storage
  • Slim profile designed for narrow spaces
  • Capacities from 1,575 litres to 3,000 litres
  • Wide range of colours to suit your property
  • Backed by industry-leading warranties
Learn more about our quality
Tankworld Tasmania slim line water tank Made in Tasmania

Tank Selection Guide

Choosing the Right Slim Line Water Tank

Slim line tanks are designed for areas where space is limited. Before choosing a model, consider the available dimensions, required capacity, intended water use and whether a round tank may suit the site better.

01

Measure the Available Space

Measure the width, length and height of the installation area. Allow additional room for plumbing, fittings, maintenance and access around the tank.

02

Choose the Right Capacity

Slim line tanks provide useful storage within a narrow footprint. Choose a capacity that suits the available space and the amount of rainwater your property can collect.

03

Consider How You’ll Use the Water

Think about whether the water will be used for gardens, toilets, laundry, household supply or supplementary storage. Your intended use will help determine the required capacity and pump setup.

04

Compare Slim Line and Round Tanks

Slim line tanks are ideal where width is restricted. Where sufficient space is available, a round tank will generally provide more capacity and better value for money.

Not sure which slim line tank will fit?

Send us the available width, length and height, along with how you plan to use the water, and our team can help identify the most suitable options.

Ask Our Team

More About Slim Line Tanks

Slim Line Water Tank Information

Explore more information about slim line tank suitability, dimensions, drinking-water quality, delivery and Tasmanian manufacturing.

Why Choose a Slim Line Water Tank?

Slim line tanks are designed for properties where available width is limited. Their narrow footprint makes them well suited to areas beside homes, sheds, garages and boundaries where a traditional round tank may not fit.

They provide useful rainwater storage for gardens, toilets, laundry and supplementary household use while making better use of narrow installation spaces.

Tank Sizes and Dimensions

Our slim line tank range includes capacities from 1,575 litres to 3,000 litres. Each model has a different combination of length, width and height, so it is important to check all dimensions before ordering.

Measure the full installation area and allow additional clearance for inlet plumbing, outlets, pumps, maintenance and access. Also check nearby windows, eaves, fences and downpipes.

Safe for Household and Drinking Water

Tankworld slim line tanks are manufactured from food-grade polyethylene suitable for drinking-water storage when the complete rainwater collection and plumbing system is correctly designed and maintained.

Our polyethylene tanks are manufactured to comply with AS/NZS 4766, while materials intended to come into contact with drinking water are tested to AS/NZS 4020.

Learn more about our quality and standards
Preparing for Delivery and Installation

Before delivery, prepare a suitable level base and make sure there is clear access to the installation area. Although slim line tanks are narrow, their full length and height can still affect access through gates, beside buildings and around corners.

Confirm the delivery route as well as the final tank location. Additional assistance may be required if the tank needs to be moved beyond the standard delivery point or positioned onto a prepared pad.

View tank delivery information
Slim Line Tanks Compared with Round Tanks

Slim line tanks are the better option where available width is the main restriction. They allow useful storage capacity to fit into spaces that may otherwise remain unused.

Where there is enough open ground, a round tank will generally provide more storage capacity and better value for money. The best choice depends on available space, required capacity and how the water will be used.

Compare round water tanks
Tasmanian Manufacturing and Statewide Support

Our polyethylene slim line tanks are manufactured in Tasmania for local homes, gardens and properties. Local manufacturing allows us to offer practical advice across the range and supply tanks suited to Tasmanian conditions.

Tankworld Tasmania provides product advice through our Kings Meadows and Glenorchy stores, together with delivery across Tasmania. Our team can help with dimensions, colours, access, capacity and the most suitable tank for your property.