Can you hear a loud banging coming from the pipes inside your walls?
You may be experiencing hydraulic shock, commonly known as a “water hammer”. Although this problem is common, it can lead to some disastrous outcomes if left unrectified. In this article, we’re explaining what a water hammer is, what causes it and how you can fix the issue.
Understanding Hydraulic Shock
Hydraulic shock is the technical term for water hammer, and this occurs when water stops or changes direction suddenly. It can happen when a tap or valve is suddenly closed, causing hydraulic shockwaves to move through the pipe and generate pressure. The pipes then strike against one another or against the wooding framing in your home.
A water hammer in pipes often arises on washing machines and kitchen taps. Sometimes, tenants in apartment blocks and single dwellings will turn these appliances on before they go to bed at night. If the water hammer isn’t resolved in a reasonable amount of time, it will get louder and louder. It may even dislodge water works as the pressure grows.
Most Common Causes of Water Hammer
Hydraulic shock occurs when:
- There is air in the pipes
- The plumbing has a design fault
- The wrong types of taps are used on particular fittings
- Restrictions in water flow due to kinks or corroded pipes occur
- Automatic valves on sprinkler systems open or close
- Gravity hot water services are impacted by mains pressure
- Float controls in toilet cisterns are faulty
- Pumps are started and stopped
How to Deal with a Water Hammer
Remove the air from your pipes by turning on the tap that is at the highest point on your property. If the problem continues, you will need to call a licensed plumber. Fixing a water hammer as soon as the signs appear is far more cost-effective than repairing the damage that can be caused by it.
Water hammers can cause weak pipes to burst, especially if there are loose joints or signs of corrosion. It can also move the pipes if they aren’t secured properly, causing fatigue cracks and friction holes. This is why it’s so important to speak to your plumber straight away.
Call O’Neill and Brown Plumbing Service
When you need plumbing services in the greater Canberra region, Brisbane or Southeast Queensland, speak to O’Neill and Brown Plumbing Service. We are highly trained and experienced plumbers who can fix your water hammer before it gets worse.
