
3636 Litre Two Piece Divided GRP Water Tank - Insulated (25 mm)
Manufactured to meet BS7491 Parts 1 and 2, A divided tank is to ensure water is always availible even whilst servicing the tank whilst using the highest quality GRP materials, this ensures a long service life with minimal maintenance requirements.
Fully WRAS approvedm, and grey colour as standard (other RAL or BS colours are available at additional cost). Only materials of the highest quality are used along with a highly efficient manufacturing processes. This combination ensures that these tanks are of the highest quality available.
All internal surfaces, including the lid, have an Isophthalic white gel coat layer which provides a clinical smooth surface which will not support the growth of microbiological organisms. This gel coat layer is reinforced by the main GRP laminate, which provides the main structure of the tank body. The materials used are of the highest quality and applied with exacting production standards to assist in prevention of osmotic blistering. After the CFC free PU foam insulation is fitted, the GRP outer skin is then applied. This ensures that the insulation is fully encapsulated and protected from external conditions. Where access is a limiting factor and our one piece GRP tanks are unsuitable, a two piece tank could do the trick. These tanks are manufactured in two or more horizontally split sections, which are then assembled once the restriction has passed. In a nutshell, and a one piece tank in two or more bolt together sections. All the components including sealant and fixings for the joint flange are supplied with the tank. The assembly of this range of products could not be easier and should not prove difficult for any competent mechanical services engineer.
Please note: Nominal capacity shown
Nominal capacity = full capacity to top of tank
Actual capacity = float level
Please note: valves and fittings are supplied loose (items can be fitted to the tank for an additional fee)
The Encapsulated Baseboard will come moulded into the internal base of the tank to become part of the tank's construction and overall strength of the base. This will benefit the tank if it's on uneven surfaces or positioned on raised supports. It will not come supplied as a separate item
The tank is supplied with 2 low level connection pads, on the opposite end to the inlet.
| Internal Dimensions (L x W x H) | 2440 x 1220 x 1070 mm |
| External Dimensions (L x W x H) | 2610 x 1410 x 1163 mm |
Optional steel water tank support Stand (1000 mm clearance to underside)
- Steel water tank support Stand suitable for raising the tank, allowing pump sets or other equipment to be positioned underneath.
- Allows maximum use of the available footprint.
- Increases the static head for applications where pressurised feed to equipment is advantageous.
- Suitable for One piece tanks.
- Painted Grey Primer finish.
- Manufactured in one piece
- Supplied with ply boarding to provide a flat, solid surface for the tank base
Delivery
All our GRP tanks are for delivery by customer offload. This entails the customer to acquire the right manpower and/or machinery to help unload the tank/s from the delivery vehicle. If you require assistance with offloading, we may be able to offer a tail lift (lowers the tank to the ground) or HIAB (lorry with a mounted crane to winch the tank off the delivery vehicle). Please contact us if this is required for delivery.
Does your water tank need a clean?
Water can pose a number of risks if not maintained correctly, with this in mind we can offer the below service for your GRP tanks.
Annual Disinfection Information and Options
- Designed for easy installation, saving time and money
- We can offer monthly, yearly and fixed priced packages ranging from 1-3 years
- All work is carried out by CSCS qualified engineers
- Tank upgrade works available, bringing the old tanks up to current regulations
- Full tank replacement works available
- Legionella risk assessments including schematic drawings if required
- Microbiology analysis - water sampling via UKAS approved laboratories
- Building flush and mains injection
- Commissioning of booster sets
- Servicing of water softeners and booster sets
- Replacement of hollow roof struts.
- Insulating of existing cold water storage tanks
For more information regarding the annual disinfection, visit our GRP commissioning page now
| Material | GRP / Fibreglass |
|---|---|
| Approval | WRAS Approved |
| Tank Use | Above Ground |
| Application | Potable |
Glass Reinforced Plastic tanks are made from high quality GRP material manufactured to BS EN 13280:2001, are suitable for all cold water applications, insulated tanks are also suitable for external applications, and are fully WRAS approved plus a central divide to ensure the site always has water even whilst annual service takes place.
A float valve will usually be sized to suit your incoming mains water supply, so if you have a 25 mm incoming mains you will need a 1” float valve. If we supply the float valve with your tank, we will size and supply the overflow to suit this.
All Float valve ordered with these tanks are non-refundable
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.
Looking to return an item?
If you wish to return goods, please complete the form on this page to provide further information.
Once your request is approved, a valid Returns Authorisation Number (RAN) will be issued to initiate the returns process along with information on how & where to return your order along with any costs involved.
Please DO NOT return any goods without this authorisation. Goods cannot be accepted without this.
Returns are not accepted at our Minehead Office, please wait until we contact you before returning any goods.
Please click here to request a return of one of our products.
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 8am-5pm. Site visits for orders over £2,500.




