Maintenance depends on the intended use and the stored liquid. For water use, it is recommended to regularly check the fittings, the overall condition of the tank, the installation surface, and the equipment.

Periodic cleaning may be required depending on usage. Harsh products that could damage the liner or accessories should be avoided.

Avoid aggressive chemicals, solvents, abrasive products, or sharp tools that could damage the liner, welds, fittings, or accessories.

For basic cleaning, use clean water and, if necessary, a mild product compatible with the intended use of the tank.

A flexible tank can slightly change shape depending on its filling level. However, if it collapses abnormally, the stability and flatness of the ground should be checked.

The issue may come from an improperly prepared surface, ground subsidence, or incorrect positioning. If in doubt, contact our team.

If you notice a leak, first check the fittings, valves, and accessories. A leak can sometimes come from a loose connection or a poorly positioned component.

If the issue persists, contact our customer service with photos, the tank reference, the volume, the intended use, and the location of the leak so we can guide you.

Cold resistance depends on the product range, the stored liquid, the filling level, and installation conditions. It is important to protect exposed valves, fittings, and accessories.

During freezing conditions, avoid any sudden handling of the equipment and seek advice if your tank is installed in an area heavily exposed to cold temperatures.

A closed flexible tank limits the water’s exposure to air, light, and external elements. This reduces the risk of algae growth or mosquito development compared to open storage.

It remains important to properly seal access points, check fittings, and maintain collectors or filters depending on the installation.

The shape and dimensions depend on the product range, the desired volume, and manufacturing constraints. Some projects can be designed with customized dimensions.

For a specific configuration, it is recommended to provide the available space, maximum height, desired volume, and site constraints.

Delivery times depend on the product range, volume, options, availability, and delivery destination.

For simple, readily available models, the lead time may be shorter. For standard tanks, large-capacity units, liquid fertilizer tanks, drinking water tanks, or fire water reserves, the delivery time depends on manufacturing and the required configuration.

You can request a quote from our contact page or via the form available on the product pages. To receive an accurate response, please indicate the type of tank, the desired volume, the liquid to be stored, the installation location, the intended use, and the required accessories.

Our team will propose a solution tailored to your project.

To prepare a quote, please ideally provide:

• the type of liquid to be stored ;
• the desired volume ;
• the intended use ;
• the installation location;
• the available surface area ;
• filling and draining requirements ;
• desired accessories ;
• the required timeframe ;
• any specific site constraints.

yes, Serena Group delivers its flexible tanks in UK. Delivery conditions may vary depending on the product range, volume, weight, destination, and site access constraints.

For professional projects or large-capacity tanks, delivery terms are specified at the quotation stage.

The manufacturing of  flexible tanks is part of a quality approach governed by several recognized standards, including ISO 9001, ISO 14001, and ISO 45001.

Depending on the products and ranges concerned, some tanks may also be associated with QB certification issued by CSTB. The applicable certifications must always be verified according to the intended use: drinking water, liquid fertilizers, fire reserves, water storage, or other specific needs.

ISO certifications are internationally recognized according to the standards published by the International Organization for Standardization. QB certification is issued according to CSTB standards.

A flexible retention bassins is used to secure the storage of liquids by limiting the risk of spillage in the event of leaks, overflow, or incidents involving a tank, vessel, drum, piece of equipment, or storage area.

It is particularly useful for agricultural and industrial sites, construction sites, technical areas, workshops, or temporary installations that require a suitable containment solution based on the stored liquid and site constraints.

The choice of retention bassin depends on the volume to be secured, the type of liquid, available space, intended use, and applicable site regulations. For a professional project, it is recommended to verify the required containment capacity before installation

A flexible tank is used to store a liquid, while a flexible retention bassin is used to contain or secure a storage area in the event of leakage, spillage, or overflow.

The tank is therefore used as the main reservoir. The retention bassin is used as a safety solution around or under equipment, a tank, a drum, a flexible tank, or a technical area.

Depending on the project, both solutions can be complementary: the flexible tank provides storage, while the flexible retention bassin enhances the safety of the installation.