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COLD WATER STORAGE TANKS

Dewey Waters is a market leader in the manufacture and supply of GRP cold water storage tanks for the UK and export markets. Our industry knowledge spans over 60 years. All our tanks are manufactured from Glass Reinforced Plastic (GRP) and Our range includes potable and non-potable water storage tanks options. Potable is for drinking water. Non-Potable is for grey water storage.

 

Our Water Storage Tanks Range

Dewey Waters has gained an established reputation for manufacturing large and small-scale cold water storage tanks for their customers at home in the United Kingdom and throughout the world.

hot press sectional water storage tank

HOT PRESS SECTIONAL  

SUITABLE FOR LARGER PROJECTS UP TO 4 METERS HIGH

Dewey Waters specialises in hot press compression moulding at our manufacturing locations. GRP sectional water storage tanks are a cost-effective modular solution that is Water Regulations UK approved and suitable for the storage of wholesome & potable water. We can cater for all water tank specifications for Export projects or domestically here in the UK.

TIF Sectional Cold Water Storage Tanks

TIF SECTIONAL TANKS

IDEAL FOR MAXIMIZING CAPACITY IN RESTRICTED SPACES

Our range of totally internally flanged (TIF) sectional water storage tanks suit all applications and are ideal where space is restricted. Due to its internally flanged design, this tank can be installed against walls and into corners thereby maximizing water storage capacity.

One Piece Tanks

ONE PIECE TANKS 

STOCK OPTIONS AVAILABLE FOR COST-EFFECTIVE WATER STORAGE 

Dewey Waters manufacture and supply cistern tanks and one piece tanks. Our new range offers taller and narrower tanks for common plant room space issues. Our tanks are approved and certified in accordance with current regulations. Water Regulations UK (Water Regulations Advisory Scheme)

Fire Sprinkler Tanks

FIRE SPRINKLER TANKS

TANKS FOR COMMERCIAL & INDUSTRIAL APPLICATIONS

Dewey Waters is a certified supplier of sprinkler tanks which are trusted by businesses, municipalities and their insurers who rely on the availability of an emergency water supply to sprinkler systems in the event of a fire.

Fully Certified Water Storage Tanks Manufacturers

 

Dewey Waters is an accredited & certified GRP water storage tanks manufacturer. We pride ourselves on operating to the highest professional standards. We are committed to supplying our customers with genuinely market-leading, high-quality products, and always strive to provide the most appropriate solutions to fulfil clients’ needs. Our product range and grp manufacturing processes are continually updated and optimised to ensure that we offer the most up-to-date products and services - improvements that are driven by a combination of legislative change, fluctuating market forces and consumer demand. To ensure consistent levels of product quality, we regularly monitor our procurement and usage of raw materials, whilst also striving to adopt the most efficient production methods - using natural resources in all of our manufacturing processes where possible.

Fully Certified Water Storage Tanks Manufacturers

We meet your specifications

On Budget!

Providing quality standard, industry approvals, extended warranties, cost-saving and meeting supply deadlines for delivery and installation of our water storage tanks.

TIME TO SHARE THE KNOWLEDGE

Visit our Knowledge Hub for supporting documentation, technical
data, downloads and more..

Calculator Tools

Use our popular tools to help calculate your tank size

Calculator Tools

Use our popular tools to help calculate your cistern tank or one piece tank size!

Tank Calculator

WORK WITH US ON YOUR NEXT GRP WATER STORAGE TANKS PROJECT

60 years' industry experience, trusted & reputable supplier

Priory Mechanical Services

“The installation process was smooth and very efficient.

We will continue to use Dewey Waters as the service we receive is always excellent.”

Product supplied: Sectional Tank HLU TIF 2.25m x 1.00m x 2.00m

★★★★★

Priory Mechanical Services

TRUSTED BY OUR CUSTOMERS THROUGHOUT THE UK & THE WORLD

Our commitment to our customers

At Dewey Waters, we endeavour to provide you with an excellent customer experience through all stages of your water storage tanks project from receipt of your enquiry through to completion. Upon receiving the receipt of your purchase, a member of our sales team will contact you, either by telephone or email to confirm your order and advise the current lead time. After your order has been processed by our drawing team and sent to be manufactured, you will be contacted again with an expected delivery date, though bear in mind our standard delivery terms do not include the offload and position of the product.

Water Storage Tanks

Expert Installation of Water Storage Tanks

 

With over 60 years’ industry experience, the team behind Dewey Waters are experts within both Water Storage Tanks Industry and GRP industries. Specialising in the manufacture of cistern tanks or one piece tanks, grp sectional water storage tanks and fire sprinkler water storage tanks, our experience ensures that we are able to accommodate projects across all industries. By supplying water storage tanks configurations that can conform to restrictive site specifications and other external governing factors. Dewey Waters have supplied and installed quality GRP products for high profile clients, locations and events. This includes Wembley Stadium, the Olympics, Buckingham Palace, and The Shard. No matter the scale or scope of the project – we perform!

Expert Installation

 

With over 60 years’ industry experience, the team behind Dewey Waters are experts within both Water Storage and GRP industries. Specialising in the manufacture of one piece, sectional and fire sprinkler cold water storage tanks, our experience ensures that we are able to accommodate for projects across all industries. By supplying tank configurations which can conform to restrictive site specifications and other external governing factors, Dewey Waters have supplied and installed quality GRP products for high profile clients, locations and events. This includes Wembley Stadium, the Olympics, Buckingham Palace, and The Shard. No matter the scale or scope of the project – we perform!

Technical Advice for Water Storage Tanks

 

Working with Dewey Waters, clients can expect to receive unparalleled levels of technical knowledge, product choice and customer service, as we pride ourselves on being a leading authority in GRP manufacture and production. At Dewey Waters, our products are suitable for a wide range of applications in a number of different sectors. We regularly cater for a large variety of clients, including architects, specifiers, main contractors, utility companies and agricultural clients. Although this is by no means an exhaustive list - our products have been used in a huge array of applications.

Cold Water Storage Tank FAQs

What are Water Storage Tanks made of?

All of our water storage tanks are manufactured from Glass Reinforced Plastic (GRP). It is also called fibreglass, composite plastic or FRP. It is strong, extremely light and highly versatile. GRP behaves differently to the conventional thermoplastics that are used in everyday items. Other tank manufacturers may use mild steel pressed panels, stainless steel, and polythylene.

How to size a water tank?

BS EN 806-2:2005 19.1.4 offers the following guidance on water storage tank capacities:

Table 6 gives recommendations for storage capacities related to various types of use but these are to be regarded as a guide only.

In determining the total capacity of cold-water storage in the premises concerned, account shall be taken of:

  1. a) the need to prevent stagnation by ensuring that water is held in storage for as short time as possible; and
  2. b) the requirements of any associated water fittings and appliances, particularly where supply interruptions can cause damage to property or inconvenience to the user.
Type of Building or Occupation Minimum Storage!
Hostel 90 per bed space
Hotel 200 per bed space

Office Premises:

  • with canteen facilities
  • without canteen facilities
  • 45 per employee
  • 40 per employee
Restaurant 7 per meat

Day School

  • Nursery or Primary
  • Secondary or Technical
  • 15 per pupil
  • 20 per pupil
Boarding School 90 per pupil
Children’s Home or Reidential Nursery 135 per bed space
Nurse’s Home 120 per bed space
Nusing or convalescent home 135 per bed space

The water supplier should be consulted before finalising cistern capacity to hotels, hostels, office premises (with or without canteen facilities), schools (day and boarding) and other substantial establishments.

For most dwellings where a constant supply at adequate pressure is a statutory requirement, a maximum capacity of 80 l per person normally resident should prove satisfactory. A larger capacity based on 130 l per person would be appropriate where cistern refilling normally takes place only during the night hours.

How often should cold water storage tanks be cleaned?

Cold water storage tanks should be inspected, and any remedial works carried out on an annual basis as stipulated in HSG274 Part 2. Additional guidance  & instruction is provided in BS8558 & the HSE approved Code of practice & guidance (ACOP) book L8 entitled ‘Legionnaires’ disease. The control of legionella bacteria in water systems’.