If a hot water system is releasing a large amount of water, the leak is spreading or there is any electrical or gas concern, treat it as urgent. Keep clear of hazards and contact a licensed plumber. A small amount of discharge from some valves can occur during normal operation, so the exact source matters.
First identify where the water is coming from
Useful locations include the tank or casing, a visible pipe connection, the relief valve discharge line, the base of the unit or nearby pipework. Do not remove covers or touch electrical components to investigate.
When a hot water leak is urgent
- Water is flowing continuously and cannot be safely contained.
- The leak is entering walls, ceilings or occupied rooms.
- There is visible damage around electrical equipment.
- You smell gas or suspect a gas-related fault.
- The property has lost an essential hot water service and the occupants or facility cannot safely manage without it.
Repair or replacement?
The answer depends on the failed component, system type, age, condition and availability of parts. A valve or connection can be a different repair from a leaking storage cylinder. A plumber should identify the source before recommending replacement simply because water is visible near the unit.
Information to send before attendance
Send the system type if known, a clear photo of the unit, a close photo of the leak location, whether the leak is constant and whether hot water is still available. This helps prepare for the visit but does not replace on-site diagnosis.
Related plumbing services
See hot water repairs for fault finding and repair enquiries. If water is actively causing damage, use 24/7 emergency plumbing. If moisture is appearing away from the unit and the source is unclear, water leak detection may be relevant.
Need help with your property?
If the problem is causing active water damage, sewage overflow or loss of an essential service, contact us now. For planned work, send the suburb, symptoms and useful photos so we can understand the enquiry.