Water Tanks
Here at the Online Tank Store, we offer an extensive range of high-quality liquid water storage vessels. Manufactured by the UK’s top leading tank experts including Wydale Plastics, Enduramaxx and Tuffa Tanks. Read More The plastic tank you need will depend on its application. We can supply a product for many purposes. Medium density polyethene (MDPE) is the material used for the manufacture of most tanks. This material has many useful properties. Rainwater Harvesting Tanks to collect, filter and store rainwater for both domestic and commercial applications. A rainwater tank is a description for many systems. This term can describe a rainwater harvesting system with a pumped supply. A simple garden water tank (water butt) for storing water offers a simpler form of rainwater harvesting. The use of rain water for tasks such as watering plants or washing the car reduces reliance on the mains supply. Recycling rain water is a cost effective solution to water consumption. Using rainwater reduces water bills and minimizes the risk of using excess water. Our Water Containers range consists of smaller water tanks used for a huge range of applications. From supporting events, to camping trips or catering. Sizes range from 4 Litres upwards. Potable water storage for the storage of water for human consumption. We can supply tanks manufactured from a potable WRAS approved material. We can also supply systems with WRAS approval. Potable water tanks are available throughout most of the range. Campervan & Motorhome water tanks for water storage on the move. We are specialists in Campervan and Motorhome water tanks and can offer expert advice on the correct tank. Our water tanks for campervans range offers underslung tanks designed for specific vehicles such as Volkswagen Crafter, Transporter & Ducato. We can also supply tanks to fit in a measured space. With the dimensions of the space you have available, we can advise what will make best use of this space. Alongside the tanks, we also offer a range of purpose based plumbing kits, designed to make the water tank plumbing a breeze. Baffled Water Tanks designed for the safer transportation of liquid. A baffled tank has internal walls to help control the flow of liquid when the tank is in transport. This function is particularly useful when moving larger volumes of water.A window cleaner or car valet may use a baffled tank. A transportable water tanks with baffles can improve vehicle handling and reduce wear and tear on a car or van. Underground Water Storage to offer a neat solution to bulk water storage. Key sectors include Farming & Agriculture, Fire Suppression & Gardening & Landscaping. The underground storage tank range helps save crucial space above ground. Other sectors include Waste Water Treatment, Chemical Manufacturing. Agricultural, Commercial, Domestic And Industrial Water Storage. If you are looking for a large water tank, rain water tank or a range of smaller water tanks plastic tanks, let us know. Bespoke configurations are available. This includes items such as firefighting attachments, bolted outlets and level gauges. We can deliver to all corners of the UK with options for fast delivery or assisted offload. Collection is also available for those that need a quick solution. Online Tank Store also offer international delivery on our product range. Collection the same day is possible on a wide range of popular tanks, held in stock at our unit in Beaminster, Dorset. Our team have extensive experience in the rotational moulding industry, alongside expert knowledge of our products. They will be happy to support any enquiries.Popular categories
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0-250 Litre Water Tanks
0-250 Litre Water Tanks
Standard Water Tanks
Water Tank Categories
0-250 Litre Water Tanks
0-250 Litre Water Tanks
0-250 Litre Water Tanks
0-250 Litre Water Tanks
Standard Water Tanks
Water Tank Categories
Water Containers
0-250 Litre Water Tanks
0-250 Litre Water Tanks
0-250 Litre Water Tanks
Water Containers
Water Containers
Water Tank Categories
Water Containers
Water Containers
Water Containers
0-250 Litre Water Tanks
Above Ground Rainwater Harvesting Tanks
ATV Tanks
Water Containers
Standard Tanks
Water Containers
Water Containers
0-250 Litre Water Tanks
Water Containers
0-250 Litre Water Tanks
0-250 Litre Water Tanks
0-250 Litre Water Tanks
Water Containers
Water Tank Categories
Conical Tanks
Wheel Arch Water Tanks
37 Litre Wheel Arch Water Tank – VW Transporter T7 2025 Onwards
Wheel Arch Water Tanks
37 Litre Wheel Arch Water Tank – Ford Transit Custom 2023 Onwards
0-250 Litre Water Tanks
Water Containers
Water Containers
Standard Water Tanks
Water Containers
0-250 Litre Water Tanks
Above Ground Rainwater Harvesting Tanks
Wheel Arch Water Tanks
Wheel Arch Water Tanks
Above Ground Water Tanks
Water Containers
0-250 Litre Water Tanks
0-250 Litre Water Tanks
Water Containers
Standard Tanks
Conical Tanks
0-250 Litre Water Tanks
Wheel Arch Water Tanks
31 Litre Wheel Arch Water Tank – Ford Transit Custom 2023 Onwards
Wheel Arch Water Tanks
31 Litre Wheel Arch Water Tank – VW Transporter T7 2025 Onwards
Above Ground Rainwater Harvesting Tanks
Above Ground Water Tanks
Water Containers
Water Containers
Underslung Tanks (Tank Only)
251-500 Litres
Conical Tanks
Enduramaxx
Baffled Water Tanks
Baffled Water Tanks
Baffled Water Tanks
Baffled Water Tanks
Water Containers
Standard Tanks
Water Containers
Water Containers
Wheel Arch Tanks
Wheel Arch Tanks
Conical Tanks
Water Containers
Baffled Water Tanks
Water Containers
Water Containers
Transportable Water Tanks
Vehicle Specific Water Tanks
Water Containers
Wheel Arch Tanks
Wheel Arch Tanks
Standard Water Tanks
Above Ground Rainwater Harvesting Tanks
Water Tank Categories
Water Containers
Water Containers
Water Containers
Vehicle Specific Water Tanks
Baffled Water Tanks
Standard Tanks
Standard Tanks
Baffled Water Tanks
Water Tank FAQs
What Does 'Potable' mean?
What Water Tank do I need?
What is a Fusion Socket?

Can I View Tanks Before Purchasing?
Yes, planned viewing is possible at a number of locations. Please call and allow us time to arrange this for you.
I plan to transport the tank in a van. What tank may be best?
Can I add extra inlets / outlets to the water tanks?
What lid do I need?


Are there other colours available?
I wish to use my tank for saltwater. Is this suitable?
What is the Byelaw 30 Kit?
The Byelaw 30 Kit is specifically used when connecting a tank to mains water supply. With an insect proof screened vent, as well as preventing backflow of the stored water into the main s(potable) supply, it helps to prevents contamination A Byelaw 30 Kit is required in order to conform to the Byelaw 30 Regulation as it helps to maintain the quality of the water in the tank.