WATER STORAGE
Guidelines for Different Models of Tanks
OVERVIEW
At Tricel, we offer a wide variety of types of water storage tanks, each designed to meet diverse capacity and application requirements. Our tanks can be assembled to store anywhere from 1,000 litres to over 4 million litres of water, making them suitable for everything from small commercial projects to large-scale industrial or municipal installations.
We provide sectional, one-piece, and custom-engineered tank solutions, all built with durability and compliance in mind. Depending on your project needs, internal partitions and a range of ancillary items—such as access ladders, guardrails, and insulation—are available upon request.
Our experienced sales team is on hand to help you identify the most suitable type of water storage tank for your application. Get in touch today to discuss your requirements and discover the high-quality solutions Tricel can offer.
If you have any questions, feel free to call us or use our quote form
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General Water Tank Installation
STANDARD TANK
This tank is complete with internally flanged base, externally flanged side walls. All under water stays are stainless steel and all external bolts are galvanised to BS EN ISO 1461:1999. Stainless steel bolts are also available.
HEAVY DUTY COVER
Suitable for indoor and outdoor use, and for the storage of foul water. These tanks have internally flanged lid panels, similar to those used in the base.
HEAVY DUTY COVER AND FINISHED TO FORMAT 30
Suitable for indoor and outdoor use and for the storage of drinking water, as defined in our specification, Tricel (Killarney) Unlimited Company Format 30 on page eight.
NOTE:
To comply with current legislation, all types of water storage tanks that store water potentially intended for drinking must be adequately protected. These tanks must meet the standards outlined in the relevant water bylaws to ensure water quality and safety.
According to ISO Standards for Water Storage Tanks (ISO 67834) and BS EN 806, any cold water tap not directly connected to the mains—yet likely to be used for drinking—must be supplied exclusively from tanks that are properly protected. In instances where drinking water has been stored in an inadequately protected tank, a water analysis should be carried out. Following that, suitable protection measures must be implemented.
For tanks exceeding 1,000 litres (220 gallons), it’s recommended they be divided or supported by standby tanks. This setup facilitates easier access during maintenance and repairs. Additionally, these tanks should feature a washout pipe or drain-out tap, which must discharge above an external gully to prevent backflow contamination and unnecessary water waste.
Proper insulation is also a key consideration. The insulation material used should remain structurally intact when in contact with water. Commonly compliant materials include phenolic and polyurethane closed-cell foams. Where pipe cut-outs are made through insulated panels, bezels should be installed. These not only shield exposed insulation but also prevent moisture, insects, and vermin from penetrating—thereby maintaining both hygiene and the long-term integrity of the insulation.
FURTHER TECHNICAL INFORMATION
Download our detailed technical data brochure
CASE STUDIES
View our sectional tank case studies
Additional Information
Types of Bolts:
Standard tanks come complete with bolts galvanised to BS EN ISO 1461:1999, we recommend that consultants specify stainless steel grade 316 S16 bolts under water and on the lid.
Dividers:
In any situation where there is only one water storage tank in a building and the capacity is greater than 1,000 litres (220 gallons), BS EN 806 states “to avoid interruption of the water supply when carrying out repairs or maintenance, the cistern shall be provided with compartments or standby cistern”. Where drinking water is being stored, two separate tanks are recommended as it is difficult to detect cross-contamination from one side of a division wall to another.
Condensation trays:
They should be used in any instance where condensation drips from pipework or from the tank as it could cause nuisance damage or render floors wet and slippery.
Ball valve housing:
The enclosed chamber containing an access hatch above the level of the cover, permitting the level control mechanism to be mounted at a higher level than would otherwise be possible. The overflow(s) must be placed on the tank sidewall and not on the Ball Valve Housing, water must be kept below the tank roof level. This is only necessary where very large ball valves are used.
Ladders:
Where the tank depth is 1m or greater, internal and external ladders should be specified. If the tank is on a raised platform then ladders may be required on tanks lower than this height. Where the tank is 2m or more from the top of the tank to the finished floor level external ladders should be fitted with safety cages and comply to BS 4211:2002+A1:2008.
Guardrail: A guardrail should be fitted enclosing all access points to the tank roof, where a tank is 2m or more from the top of the tank to the finished floor level. Additional safety guards may be required for ladders depending on their location. A risk assessment should be carried out by the end users to determine if this is required.
Reverse base tanks:
(Externally flanged base) These types of tanks allow the tank to be totally drained down, as the base is flat, they also allow access to all the bolts from the outside of the tank. 600 mm clearance is required underneath the tank for access to the base bolts.
Recent Projects
Extensive industry experience, manufacturing since 1973.
Tricel manufacture deliver & install cold water storage tanks across a wide range of industry sectors throughout Ireland & the UK. Tricel also provide import/export services for our international clients. Tricel has been Manufacturing water tanks since 1973, and are made from Glass Reinforced Plastics (GRP). This top quality material offers outstanding capabilities including long life, durability and is a cost-effective solution for water storage even in the harshest environments. Cold water storage is available for both potable and non-potable applications.
GRP Water Storage Tank Installations
Data Centres
Government Buildings
Airports & Hotels
Pharmaceuticals
50 years in business
A highly successful multinational corporation with over 50 years’ valuable industry experience
Fully Customisable Tanks
Tanks available for all capacities, 43 litres to 4,651,290 litres. Larger tanks available on request
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On-time delivery is a core requirement of our successful business operations
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TALK WATER STORAGE
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