Firefighting water tanks are a key part of fire protection systems, especially where access to hydrant water is limited. Their design, construction and operation have to meet specific legal and technical requirements that guarantee safety and reliability. In this article we discuss the most important regulations and the technical aspects of building firefighting water tanks.
1. Legal rules for firefighting water tanks
In Poland the construction of firefighting water tanks is governed by:
- the Fire Protection Act – it sets out fire protection duties and the requirements for the related infrastructure.
- regulations of the Minister of the Interior and Administration – they define the detailed rules for designing and using firefighting water tanks.
- Polish Standards (PN-B-02857:2017) – they set the technical requirements for the design, construction and operation of the tanks.
Under these rules, a firefighting water tank has to hold enough water to fight a fire and must be located where the fire brigade can reach it easily.
2. Types of firefighting water tanks
Depending on the need and the location, several types of firefighting water tanks are used:
- Above-ground tanks – installed on the surface, often made of concrete or steel.
- Underground tanks – placed below ground level, which saves space and keeps the site tidy.
- Open tanks – frequently used in rural and industrial areas, built as uncovered basins.
- Closed tanks – technically more advanced, they offer better tightness and protection against contamination.
3. Technical requirements for construction
Every firefighting water tank has to meet defined technical requirements, such as:
- Tank capacity – it depends on the class of the building and the fire risk. The minimum capacity is usually 50 to 200 m³, depending on local rules.
- Construction materials – tanks should be made of corrosion-resistant materials such as concrete, stainless steel or polyethylene.
- Structural strength – the tank must withstand weather conditions, mechanical loads and temperature changes.
- Water intake systems – they must give the fire brigade fast and easy access to water, for example through hydrants, pumps or suction connections.
- Safety systems – tanks must be fitted with overflow protection and safeguards against water contamination.
4. Location of the tank
The location of a firefighting water tank matters just as much as its structure. It has to allow fire brigade units to arrive quickly and easily. The regulations require:
- placing the tank no more than 150 metres from the building it is to protect.
- providing a paved access road for fire engines.
- marking the tank clearly so that it is visible to the emergency services.
5. Inspection and maintenance
Regular maintenance of firefighting water tanks is essential for them to work properly. Building owners have to ensure:
- Periodic technical inspections – covering tightness, the water intake systems and the condition of the structure.
- Cleaning of the tank – to remove sediment and contamination.
- Keeping the systems clear – pipelines, pumps and valves included.
Summary
Building a firefighting water tank is an investment in the safety of a property and its users. It requires compliance with defined legal and technical rules that guarantee the effectiveness and durability of these structures. A properly designed and maintained tank gives fast access to water in an emergency and limits the risk of fire losses. It is therefore worth paying attention to the choice of tank type, its location and regular maintenance, so that it serves its purpose for many years.
