Water Fire Extinguishers Guide – All You Need to Know
Water fire extinguishers are a fundamental component of fire safety equipment. They are designed to tackle specific types of fires effectively and are recognised for their simplicity, efficiency, and eco-friendliness.
We explain everything you need to know about water fire extinguishers, from their primary uses to how they operate. It ensures you’re well-prepared for emergencies.
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What fires are water extinguishers used for?
Water fire extinguishers are primarily used to combat Class A fires involving solid materials, typically organic in nature, such as wood, paper, cloth, trash, and plastics.
They are ideal for environments where these materials are in abundance. They work by effectively cooling the fire and reducing the risk of re-ignition.
Exclusions (what they should not be used for)
Understanding that water fire extinguishers are unsuitable for all fire types is critical; this extinguisher type should not be used on:
- Class B fires – involving flammable liquids such as petrol, diesel, or oils, as water can spread the fire.
- Class C fires – involving gases.
- Class D fires – involving metals.
- Class F fires – involving cooking oils and fats as water can cause the burning oil to splatter and spread.
How to identify them
In the UK, water fire extinguishers are easily identifiable by their bright red label.
However, it’s always important to carefully read the instructions and labels before use.
Common water extinguisher sizes
How they work
Pros and cons
Pros:
- Many are environmentally friendly, as they only use water, although some use an additive.
- Easy to use and maintain.
- Effective on Class A fires, cooling the fire and preventing re-ignition.
Cons:
- Only suitable for one fire type
- This extinguisher can cause damage to electrical equipment and documents.
Common uses, what businesses typically use them
Water fire extinguishers are commonly used in environments with a high presence of organic materials, such as:
- Offices
- Schools, Colleges and Universities
- Retail and commercial buildings
- Domestic residences
- Public buildings like libraries, museums etc.
- Historical buildings
- Warehouses and storage facilities storing non-flammable materials
- Airbnb and holiday rentals
Typical use cases for water fire extinguishers
Typical use cases for water
fire extinguishers
How to use a water extinguisher
- Pull the pin: Break the tamper seal.
- Aim low: Direct the hose or nozzle at the base of the fire, maintaining a safe distance.
- Squeeze the handle: This releases the water.
- Sweep side to side: Move the stream or hose in a sweeping motion across the base of the fire until it is extinguished.
Always ensure your escape route is behind you, and never use water on electrical fires or fires involving flammable liquids and gases.
Water fire extinguishers are indispensable tools for combating Class A fires. Understanding their capabilities and limitations is crucial for ensuring the safety of individuals using them. After use, it’s vital to have the extinguisher refilled and serviced by a professional to ensure it’s ready for any future emergency.
Talk to us about your water extinguisher needs and your wider fire safety requirements
Talk to IPS Fire and Safety about your fire safety responsibilities. From an initial fire risk assessment to team fire safety training and the supply and fitting of fire extinguishers, we’re here to help you keep your people safe and meet your legal fire safety requirements.
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