About Purewater Storage
What does Purewater Storage Limited do?
Purewater Storage Limited is a UK manufacturer and supplier of GRP water storage tanks, sectional tanks, combination units, enclosures and tank accessories. We support commercial, industrial, residential and infrastructure projects with product selection and technical advice.
Where are Purewater Storage tanks manufactured?
Our GRP tanks are manufactured in the UK. This gives us close control over quality, specification and production while supporting responsive technical service.
Which sectors use GRP water storage tanks?
GRP tanks are widely used in healthcare, education, residential developments, hotels, leisure facilities, manufacturing, commercial buildings, data centres, utilities and fire-protection systems. The correct specification depends on the water use and project requirements.
Why choose Purewater Storage?
Customers choose Purewater Storage for UK manufacturing, dependable product quality, broad GRP expertise, technical help from selection through to aftercare, and nationwide supply. We can help turn a duty, capacity and space requirement into a practical tank specification.
Can you help me specify a tank?
Yes. Share the required capacity, available space, access constraints, intended water use, inlet and outlet details, insulation needs and applicable standard. Our technical sales team can help you identify suitable options. You can also start with our Tank Selector.
Choosing the right tank
What is a GRP water tank?
GRP stands for Glass Reinforced Plastic. Glass fibres reinforce a resin matrix to create a strong, lightweight and corrosion-resistant material suitable for many water storage applications.
What are the advantages of GRP over steel?
GRP does not rust, offers a high strength-to-weight ratio, can be insulated, and is available in modular formats. It is often easier to move into difficult locations than a comparable steel tank. Suitability and whole-life cost should always be assessed for the individual project.
What types of water tank do you supply?
Our range includes one-piece and two-piece GRP tanks, sectional tanks, combination units, GRP enclosures, underground tanks, polytanks, fire-system tanks and associated valves, outlets and accessories.
What is the difference between one-piece, two-piece and sectional tanks?
- One-piece: moulded as a single unit and quick to position where delivery access permits.
- Two-piece: manufactured in two sections for improved access, then joined on site.
- Sectional: supplied as individual panels and assembled in position, making it suitable for restricted access or larger capacities.
How do I work out the tank capacity I need?
Capacity depends on the system duty, peak demand, refill rate, occupancy or process use, resilience requirement and any relevant design standard. Nominal, actual and usable capacities are not interchangeable. Ask your system designer to confirm the design duty, or send it to our technical team for help with product selection.
What is the difference between nominal, actual and usable capacity?
Nominal capacity is the tank’s stated geometric capacity. Actual capacity reflects the internal volume under defined conditions. Usable capacity is the working water volume between operating levels after allowances such as freeboard and low-level draw-off. Always specify which capacity your project requires.
Do I need an insulated tank?
Insulation may be required to help control stored-water temperature and reduce condensation, particularly for external tanks or warm plant rooms. The need and insulation level should be set by the project specification and risk assessment.
What are internal divisions and why might I need one?
A division separates the tank into compartments, allowing one side to remain operational while the other is isolated for inspection or cleaning. Whether a division is suitable depends on the required resilience, pipework arrangement and maintenance strategy.
Can you manufacture bespoke water tanks?
Yes. Many dimensions, configurations, connections and accessories can be tailored to the application. Bespoke manufacture remains subject to design, manufacturing, transport and installation constraints, so involve us early in the project.
Do you supply tanks for sprinkler and fire-protection systems?
Yes. Purewater Storage supplies GRP tanks and related solutions for sprinkler, wet-riser, misting and other fire-protection applications. The capacity, arrangement and fittings must follow the fire-system designer’s specification and applicable standards.
Water quality & compliance
Are your tanks suitable for drinking water?
Potable-water tanks can be manufactured using materials approved for contact with wholesome water. Tell us at enquiry stage that the tank is for potable water so the correct construction and accessories can be quoted.
What does WRAS approval mean?
WRAS approval is evidence that a water fitting or material has been tested against relevant requirements for use with wholesome water. Approval applies to the specific material or product and its stated conditions of use; it is not a blanket approval of every complete installation.
Which standards and regulations apply to GRP water tanks?
The answer depends on the application and specification. Common references may include BS EN 13280 for one-piece and sectional GRP tanks, the Water Supply (Water Fittings) Regulations 1999, water-industry guidance and fire-system standards. The project designer must confirm the current requirements that apply to the site.
What is an AB air gap?
A Type AB air gap is a backflow-prevention arrangement using a weir overflow and defined air gap between the inlet and the maximum water level. It is commonly used where protection against Fluid Category 5 contamination risk is required. Correct sizing and arrangement must be confirmed by the system designer or water regulations professional.
Why are screened vents, overflows and warning pipes important?
Correctly selected screens help prevent insects, debris and other contaminants entering through tank openings. They must be suitable for the application, installed correctly and kept clear during routine maintenance.
Who is responsible for confirming compliance?
The designer, installer and building owner each have responsibilities. Purewater Storage can supply information and help with product selection, but the project team must confirm the complete system design, installation and ongoing operation comply with current requirements.
Access & installation
Can a tank be installed in a restricted-access area?
Often, yes. Two-piece and sectional tanks are designed to solve many access challenges. Check every doorway, corridor, turn, stair, hatch and lifting point—not only the final room dimensions. Allow for packaging and safe manual handling too.
How much clearance should I allow around the tank?
Clearance is needed for assembly, connections, inspection and future maintenance. The exact allowance depends on tank type and fittings; for example, the Purewater Tank Selector advises considering 500 mm to each side for a two-piece installation. Ask us to confirm clearances for the selected model before ordering.
What base does a GRP tank need?
The support must be level, flat, rigid and capable of carrying the full operating load. Requirements differ for one-piece, two-piece and sectional tanks. The structural engineer or project designer must approve the base and supporting structure before installation.
How heavy will the tank be when full?
Stored water weighs approximately one kilogram per litre, before adding the tank, fittings, insulation and imposed loads. A 5,000-litre working volume therefore contains about five tonnes of water. Always obtain a structural assessment for the proposed location.
Do you provide tank installation?
Installation availability depends on the tank, project and location. Purewater Storage can discuss supply-and-install options and provide installation information. Contact our team with the site details for a project-specific answer.
How long does installation take?
Timescales vary with tank type and size, access, working restrictions, base readiness, connections and site inductions. A one-piece tank can be quicker to position than a sectional tank, while a large or divided sectional tank requires assembly on site. We can provide an indication once the specification and site information are known.
Can GRP tanks be installed outside?
Yes, when specified for external use. Insulation, UV exposure, weather protection, wind loading, pipe frost protection, access and security all need consideration. An enclosure or combination unit may be a better solution for some projects.
Can I drill or alter tank connections on site?
Do not cut or alter a tank without agreement from Purewater Storage. Incorrect drilling, positioning or sealing can damage the tank, affect performance and invalidate warranty cover. Provide connection sizes and locations before manufacture wherever possible.
Care, cleaning & aftercare
How long does a GRP water tank last?
Service life depends on specification, installation, environment, water chemistry, temperature and maintenance. A correctly selected and maintained GRP tank can provide decades of service, but it should be inspected rather than managed to an assumed lifespan alone.
What routine maintenance does a water tank need?
A planned regime should check access covers, seals, screens, valves, overflows, warning pipes, insulation, fixings, internal condition, cleanliness, leaks and signs of damage. Frequency should follow the site risk assessment and applicable guidance.
How often should a cold-water storage tank be cleaned?
There is no single interval suitable for every system. Inspection and cleaning frequency should be risk-based, taking account of water quality, temperature, occupancy, system condition and applicable guidance. Clean and disinfect when inspection or the risk assessment indicates it is needed, and after relevant contamination or major works.
What is Purecare?
Purecare is Purewater Storage’s aftercare support for water storage assets. Speak to our team about inspection, maintenance, cleaning, refurbishment and the services available for your site.
Can a damaged GRP tank be repaired?
Many defects may be repairable, subject to inspection of the location, cause and extent of damage. Isolate the tank if safety or water quality may be affected, take clear photographs and contact Purewater Storage before attempting a repair.
Do you supply replacement parts and accessories?
Yes. Purewater Storage supplies tank lids and access covers, screened vents and overflows, valves, outlets, gauges, level switches, ladders, insulation components and other accessories. Share the original order details, tank dimensions and photographs so we can identify compatible parts.
What warranty is included?
Warranty terms depend on the product and order. Cover is conditional on correct specification, handling, installation, use and maintenance. Refer to the quotation and current terms for the exact cover, exclusions and claim process.
Quotes, orders & delivery
What information do you need to quote?
Please provide the required capacity and capacity type, maximum tank dimensions, access restrictions, water use, internal or external location, insulation requirement, divisions, inlet and outlet sizes and positions, air-gap requirement, accessories, site postcode and required date. Drawings and photographs are very helpful.
What are your current lead times?
Lead times vary by product, specification, workload and delivery location. Some selected products may be available quickly, while bespoke and sectional tanks take longer. Your quotation or order acknowledgement will state the current estimate; confirm any fixed programme dates before placing the order.
Do you deliver throughout the UK and Ireland?
Purewater Storage offers nationwide coverage across the UK and can discuss delivery to Ireland. Availability and cost depend on the tank size, vehicle requirements, unloading arrangements and destination.
Who is responsible for unloading the tank?
Unloading arrangements are order-specific. Unless your quotation states that offloading is included, the customer may need to provide suitable lifting equipment and trained personnel. Confirm the delivery method, vehicle access and lifting plan with Purewater Storage before dispatch.
What should I check when the tank arrives?
Before signing, check the tank, panels, fittings and packaging for visible transit damage and compare the delivery with the paperwork. Record any issue on the delivery note, take photographs and contact Purewater Storage promptly. Store components securely and follow the handling guidance.
Can I change the specification after ordering?
Contact us immediately. Changes may be possible before manufacture reaches a certain stage, but can affect price and lead time. Bespoke items that have entered production may not be changeable or returnable.
Can I return a tank or accessory?
Return eligibility depends on the item, its condition and whether it was made or configured to order. Do not send anything back without authorisation. Contact the team with your order number and reason for return, then refer to the current terms and conditions.
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