
50000 Litre (10998 Gallon) Underground water tank.
The 50,000 Litre Underground GRP Water Tank is designed to provide dependable, long-term water storage for commercial, industrial, agricultural and infrastructure projects. Manufactured from high-quality Glass Reinforced Plastic (GRP), this tank offers outstanding strength, corrosion resistance and durability, making it ideal for demanding underground applications.
Key Features
- 50,000 litre storage capacity
- High-strength GRP (Glass Reinforced Plastic) construction
- Designed specifically for underground installation
- Corrosion-resistant and non-rusting material
- Lightweight compared to many traditional alternatives
- Advanced filament wound manufacturing process
- Smooth internal finish for easy cleaning and maintenance
- Suitable for potable and non-potable water storage applications (subject to specification)
- Long service life with minimal maintenance requirements
- Robust construction for demanding environments
- Available with a range of optional accessories and bespoke configurations
|
Material |
GRP |
|
Volume |
50,000 Litre |
|
Length |
9,950mm |
|
Diameter |
2700mm |
Advanced GRP Construction
Manufactured using an advanced filament winding process, this underground tank provides exceptional structural integrity and strength. The manufacturing method creates strength in both circumferential and longitudinal directions, resulting in a highly durable tank capable of withstanding demanding underground conditions.
The smooth resin-rich internal finish promotes efficient flow characteristics while making routine cleaning and maintenance easier throughout the tank's service life.
Optional Accessories & Configurations
A wide range of optional accessories can be supplied to tailor the tank to your project requirements.
Available options may include:
- Circular access shafts
- Rectangular access chambers
- Inlet and outlet connections
- Internal pipework assemblies
- Pump systems
- Level monitoring equipment
- Float switches
- Ventilation systems
- Rainwater harvesting equipment
- Access covers and lids
- Control and monitoring systems
Accessories are available separately and may not be supplied as standard.
Installation Information
This tank is designed for underground installation and should be installed in accordance with all applicable regulations, site conditions and manufacturer recommendations.
Professional installation is recommended to ensure optimum performance, safety and long-term reliability.
Made to Order
Large underground storage tanks are often manufactured or configured to suit individual project requirements. Please confirm all technical requirements and optional accessories before ordering.
Delivery
Delivery will be made using a Articulated Lorry and offloading on site will be required. If you require a HIAB please contact us for further info
| Capacity | 50000 litres |
|---|---|
| Diameter | Ø 2700 mm |
| Material | GRP / Fibreglass |
| Tank Use | Below Ground |
| Category | Underground |
Important — please read
Please ensure the product you are ordering is the correct size and suitable for the purpose. Special order, bespoke and non-stock tanks are not returnable. If you order a tank and find it is too big, too small, or unsuitable for your requirements, it can be expensive to return. Our cancellation & returns policy explains this in more detail — see Terms & Conditions.
Delivery charges
Our shipping costs cover most of the UK. However, parts of England, the Scottish Highlands and Islands (including areas north of the Glasgow / Edinburgh border), Isle of Wight, Channel Islands, Isle of Man, Anglesey, Western Isles, Shetland Islands, Orkney Islands, Isles of Scilly, Northern Ireland and the Republic of Ireland may cost more.
Please call before ordering if the delivery postcode is listed below. There may be additional shipping costs.
- AB
- BT
- CA
- CT
- DD
- DG
- EH
- FK
- G
- GY
- IM
- IV
- JE
- KA
- KW
- KY
- LD
- LL
- ML
- PA
- PH
- PO 30–41 Isle of Wight
- SA
- SY
- TD
- TN
- TR
- ZE
- Southern Ireland
Looking to avoid shipping charges?
All our tanks are available for collection ex works. Our suppliers are based all over the UK — please call if you wish to collect.
Overseas orders
International orders are welcome. Payment is by IBAN / SWIFT / BIC, MoneyGram and letters of credit. We regret that credit cards are not accepted for international orders.
A purchase order is required; we will then create a pro-forma invoice, and tanks are ordered on clearance of funds.
If you require additional export documentation — for example a Certificate of Origin, or commercial invoices certified by the Chamber of Commerce — you must notify us before completion of your order, as we will have to invoice cost and admin charges to the order.
Please call if you have any questions: +44 (0)1643 703358
Offloading
Unless a HIAB delivery has been booked at additional cost, it is the customer’s responsibility to offload with suitable equipment on the day of delivery. A failed delivery may result in additional charges.
We recommend that installers, plant hire and installation materials — excavators, aggregates and so on — are not booked until you are in receipt of the goods. Tanks Direct cannot be held responsible for costs incurred due to unforeseen delays; please see our terms for more details.
Any questions about your delivery? Contact the Sales Team on 01643 703358.
Thank you for your enquiry to return your order.
Please note, we may not be able to provide a refund for the original carriage costs paid and there may be further charges for restocking and collection to apply before your refund is processed.
Certain items may not be returnable, for example those made to order or for sanitary reasons. Please check the product page for more information.
If goods have been used, installed or are returned in less than 100% as new condition & we agree to take them back, further costs may apply. Please see our terms and conditions or contact us for more information on your specific order.
Talk to a
specialist
Sizing, regulations, installation. Our team has been answering these questions for over 25 years.
Why Tanks-Direct
22 years. 100,000+ tanks. Specialists, not generalists.
Nationwide delivery
GB and Northern Ireland covered. HIAB and crane offload available. Highlands and Islands quoted on request.
WRAS & BS EN compliant
Every potable tank is independently certified. Documentation supplied with each delivery.
Best-price guarantee
4.6/5 on Feefo from 1272 verified reviews. We price-match any genuine like-for-like quote.
Specialist advice
Trade-grade phone and email support, Mon-Fri 8:30am-5pm. Site visits for eligible orders over £2,500.





