6,000 to 25,000 Litre Polyethylene Water Storage Tanks FAQ

Below you'll find answers to the most common questions about our range of 6,000 to 25,000 litre polyethylene water storage tanks. If you need further help or technical guidance, our team is always happy to assist.

What sizes of polyethylene water storage tanks do you offer in this collection?

This collection covers tanks from 6,000 litres up to 25,000 litres. These capacities suit a wide range of commercial and industrial applications, from rainwater harvesting and process water storage to fire suppression reserves and general utility supply.

What are polyethylene water storage tanks made from, and why is this material used?

Our tanks are manufactured from rotationally moulded polyethylene, a robust and UV-stabilised plastic. Polyethylene is lightweight compared to steel or concrete, highly resistant to corrosion, and does not require internal lining or coating. This makes it a cost-effective, low-maintenance choice for long-term water storage.

Are these tanks suitable for storing potable (drinking) water?

Many of the tanks in this range are available in potable water grades that comply with WRAS (Water Regulations Advisory Scheme) requirements. Always check the individual product listing or contact our team to confirm suitability for drinking water applications before ordering.

Can these tanks be installed above ground and below ground?

Most tanks in this collection are designed for above-ground installation. Underground installation requires tanks specifically engineered to withstand soil pressure and loading. If you need a below-ground solution, please get in touch so we can recommend the right product for your project.

How much does delivery cost, and how long does it take?

We offer flat-rate UK delivery at just £12 on all orders. Delivery times vary depending on the tank size and stock availability; larger tanks may be shipped directly from the manufacturer. Contact us for an estimated lead time on your specific tank.

Do you offer stage payment options on larger tank orders?

Yes, we understand that larger purchases represent a significant investment. Stage payment options are available on qualifying orders, helping you manage cash flow on bigger projects. Speak to our sales team for details and eligibility.

What base or foundation do I need for a large polyethylene tank?

A flat, level, and fully supported base is essential. For tanks of 6,000 litres and above, a reinforced concrete slab is typically recommended to distribute the weight evenly when the tank is full. The base should extend slightly beyond the tank footprint and be free of sharp stones or debris that could damage the tank.

Do these tanks come with fittings and connections included?

Standard inlet and outlet fittings vary by manufacturer and model. Some tanks include basic connections, while others may require additional fittings to be purchased separately. Check the product description for included fittings, or contact us and we can supply compatible pipe connections, valves, and accessories from our wider range.

What maintenance do polyethylene water storage tanks require?

Polyethylene tanks require very little ongoing maintenance. We recommend periodic inspection of fittings and seals, checking for debris or algae build-up (particularly in potable systems), and ensuring that any overflow or vent systems remain clear. The tank itself does not need painting or anti-corrosion treatment.

Can I connect multiple tanks together to increase storage capacity?

Yes, tanks can be linked in series using appropriate pipe connections and balancing kits. This is a practical way to increase total storage capacity without needing a single very large tank. Our team can advise on the correct fittings and configuration for a linked system.

Are these tanks compliant with UK regulations and standards?

The tanks we supply are manufactured by trusted, industry-leading brands and are produced to relevant UK and European standards. Potable water tanks meet WRAS approval requirements where specified. If your project has particular regulatory or specification needs, contact us and we will confirm compliance for the product you are considering.

How can I get technical advice or help choosing the right tank?

Our team combines expert technical knowledge with hands-on customer service. Call or email us with details of your application, required capacity, and site conditions, and we will recommend the most suitable tank from our range. We are here to help you solve problems, not just sell products.