Harlequin Water Tanks UK | Best Water Storage Tanks 2026
Harlequin Water Tanks UK – Premium Water Storage Solutions for Every Need
Looking for reliable water tanks or water storage tanks in the UK? Harlequin Water Tanks are the best-in-class choice, manufactured for over 20 years with unmatched quality and durability. Whether you need aboveground, underground, portable, or rainwater harvesting tanks, Harlequin delivers superior performance for domestic, agricultural, commercial, and industrial applications.
Harlequin Aboveground Water Storage Tanks
Harlequin aboveground water tanks are available in both potable and non-potable versions, ranging from 920 litres to 9250 litres.
- Potable Water Tanks: WRAS and KIWA Watertec approved for safe drinking water storage. Perfect for home use, gardens, and commercial potable applications.
- Non-Potable Water Tanks: Ideal for irrigation, agriculture, and industrial non-drinking uses. Available above and below ground.
Key Benefits of Harlequin Aboveground Tanks:
- Non-Corrosive MDPE Construction – Will never rust or corrode.
- UV Stabilised – Maximum protection against sunlight degradation.
- Slimline & Low Profile Options – Perfect for space-restricted installations.
- Versatile Applications – Domestic, garden, farm, or commercial.
Harlequin Underground Water Storage Tanks (Non-Potable)
For discreet storage in smaller gardens or sensitive landscapes, choose Harlequin underground water tanks. Lightweight, easy to install, and completely corrosion-resistant, these tanks are the natural choice when surface space is limited.
Standard Features:
- Moulded in one piece from durable medium density polyethylene (MDPE)
- 500mm access opening with bolted manhole lid
- Moulded-in lifting eyes for easy handling
- Designed for non-potable water storage only
Harlequin Rainwater Harvesting Tanks – Garden & Home Harvest
Save money and reduce your water bills with Harlequin rainwater harvesting water tanks. Both Garden Harvest and Home Harvest systems offer the same high-quality benefits:
- Reduce Water Costs significantly by reusing rainwater
- Easy Installation – Shallow excavation, no concrete backfill required
- Non-Corrosive & Strong – Seamless one-piece MDPE construction
- Adjustable Turret for flexible installation
- Legislation Compliant – Meets EN 16941-1:2018 and UK Building Regulations Part G
- Calmed Inlet improves water quality
Why Choose Harlequin Water Tanks in 2026?
- Over 20 years of manufacturing excellence
- WRAS & KIWA approved potable tanks
- Sizes from 920 to 9250 litres
- Portable and non-portable options
- Aboveground and underground solutions
- UV stabilised and weather-resistant
- Trusted across the UK for reliability and performance
Whether you need a garden water tank, home rainwater tank, large agricultural storage, or a discreet underground water tank, Harlequin offers the ultimate solution for long-term water security.
Frequently Asked Questions (FAQs)
What are Harlequin water tanks made of? Harlequin water tanks are manufactured from high-quality, UV-stabilised Medium Density Polyethylene (MDPE), making them non-corrosive and extremely durable.
Are Harlequin potable water tanks approved for drinking water? Yes. All Harlequin potable tanks are KIWA Watertec and WRAS approved, complying with UK Water Supply Regulations.
Do you supply underground water tanks? Yes. Harlequin underground non-potable water tanks are ideal for discreet storage in gardens and space-limited areas.
What sizes of Harlequin water storage tanks are available? Harlequin tanks range from 920 litres up to 9250 litres, suitable for everything from small domestic use to large commercial projects.
Are Harlequin rainwater harvesting tanks easy to install? Absolutely. They require only shallow excavation with no concrete backfill, significantly reducing installation time and cost.
Where can I buy Harlequin water tanks in the UK? Shop the full range of Harlequin water tanks online with fast UK delivery. Contact us for expert advice on the best tank for your needs.
Ready to invest in the best water storage solution? Browse our complete range of Harlequin Water Tanks UK today and secure reliable water storage for years to come.