Water tanks: how to choose the right capacity, installation, and model

Water tanks allow you to accumulate and store a water reserve for domestic, agricultural, industrial or professional use. They can be used for drinking water, irrigation, rainwater collection or technical services. To choose the most suitable model it is necessary to evaluate capacity, material, destination of the water, available space and installation method.

When a water tank is needed

A tank is useful when you need an independent water reserve or to integrate the normal supply network. At home it can be used as a reserve in case of interruptions, for watering the garden or for collecting rainwater.

In agriculture and professional activities, tanks are used to supply systems, manage irrigation, washing and other technical uses. In any case, the volume must be proportionate to actual consumption and the frequency with which the reserve is replenished.

Domestic water tank: how it works

A domestic water tank stores a quantity of available water to be used when needed. It can be connected to the mains, to a rainwater collection system or to a pump, depending on the system configuration.

Operation varies according to the intended use: a simple irrigation reserve may require few components, while a system intended to supply the home must be designed more carefully, considering connections, pump, level control and water destination.

How to choose the tank capacity

Capacity is one of the main criteria in choosing. A tank that is too small may not guarantee sufficient autonomy, while one that is too large takes up more space and requires a greater investment.

To identify the most suitable volume, it is useful to consider daily consumption, the number of users, the frequency of filling and the destination of the water. For domestic or garden use, small capacities may be sufficient, while agricultural businesses, accommodation facilities and professional systems may require larger tanks.

Tank size and available space

Capacity is not the only parameter to evaluate: for the same volume, shape and dimensions can change significantly. There are vertical, horizontal and space-saving models designed to adapt to technical rooms, courtyards, gardens and other areas with dimensional constraints.

Before purchasing, it is therefore useful to measure the available space, also checking accesses, passages, connection points and space required for maintenance and inspection.

Outdoor, underground or indoor tanks

A Outdoor water tank is suitable when you have an easily accessible space. The material must be suitable for exposure to atmospheric agents and, when specified by the manufacturer, to UV rays.

Underground tanks allow you to reduce the visual clutter but require specific installation, with particular attention to excavation, soil, drainage and inspection methods. Indoor models are instead suitable for garages, cellars and technical rooms.

Drinking water tank: which one to choose

When the tank is intended for drinking water, the choice must start from the suitability of the product for this specific use. Not all containers intended for water storage are automatically suitable for water for human consumption.

It is It is therefore important to check that the materials and characteristics declared by the manufacturer are compatible with contact with drinking water and to use the tank exclusively for its intended purpose.

Materials suitable for drinking water

The materials used must be chosen in relation to the intended use of the water. Polyethylene tanks are very popular due to their lightness, resistance and availability in numerous formats, but for drinking water it is necessary to check the specific suitability of the model.

For particular applications, stainless steel, fibreglass or other technical materials can also be used. The choice must consider hygiene, durability, environmental conditions and expected maintenance.

Drinking water and technical water: what changes

A tank intended for irrigation, washing or other technical uses may have different requirements than one intended for drinking water.

Technical water tanks can be used for non-food services, rainwater collection or professional applications. It is important to clearly identify the intended use and avoid using a container for drinking water that is not declared suitable.

Installing the water tank

The installation must guarantee stability and accessibility. The tank must be positioned on a surface suitable for supporting the overall weight once full and must be installed in compliance with the manufacturer's instructions.

For outdoor models, exposure, protection from impacts and distance from points of use must be considered. For underground models, the characteristics of the soil, drainage, excavation and connections must also be evaluated.

How is it installed? A system with a water tank is composed of

A system can include, in addition to the tank, pumps, fittings, valves, float switches, filters and level control systems.

The configuration depends on the function of the system. An irrigation reserve will be simpler than a system intended for the water supply of a building. For more complex systems, it is advisable to define the required flow rate, pressure and replenishment methods in advance.

Useful accessories for water management

Taps, fittings, level indicators, float switches, filters and pumps help make the system more practical and controllable.

In the case of rainwater collection, filters and overflow systems may be useful, while in systems intended for the supply of utilities it may be necessary to integrate a suitable pump.

Tank maintenance

Maintenance depends on the material and the intended use. It is advisable to periodically check the tank, lid, fittings, valves and connection systems, intervening in the event of leaks or deterioration.

For tanks intended for drinking water, cleaning and management must be carried out with particular attention to preserve the conditions of the water reserve.

How to choose the most suitable tank

Before purchasing, it is useful to evaluate:

• type of water to be stored;
• quantity required;
• domestic, agricultural or professional use;
• available space;
• internal, external or underground installation;
• shape and size of the tank;
• need for pumps, fittings or other accessories;
• frequency of use and maintenance.

Holity , a specialist in professional supplies for companies, hospitality facilities, institutions and production activities, offers solutions for different water accumulation and storage needs.

Frequently asked questions about water tanks

Which tank should I choose for drinking water?

It is necessary to choose a model expressly declared suitable by the manufacturer for contact with drinking water, also evaluating capacity, material and installation method.

How many litres should a tank for domestic use have?

There is no single capacity: it depends on the number of users, the expected consumption, the function of the reserve and the frequency with which the tank can be filled.

Where can a water tank be installed?

Depending on the model, it can be installed outside, in a technical room or underground. It is always necessary to check the indications provided for the chosen product.

What is the difference between a drinking water tank and a technical water tank?

The drinking water tank must be specifically suitable for this use, while those for technical water can be used for irrigation, washing, rainwater collection or other non-food uses.