How To Stop Water Hammer
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June 13, 2022
When water rushes through pipes it can create a banging noise known as water hammer. This is caused by a sudden increase in pressure that happens when the water is forced to stop or change directions. Water hammer can be bothersome, but it is usually not harmful.
However, if the problem is severe it can damage pipes and cause leaks. There are several things that can cause water hammer, such as loose pipe fittings, high water pressure, or valves that close too quickly. To fix the problem, you will need to identify the cause and make the necessary repairs. In some cases, this may require hiring a professional plumber.
What Is The Difference Between Water Hammer And Air Pockets?
Air pockets can also cause problems in pipes. These are pockets of air that become trapped in the water flow. They can cause pipes to make noise and can interfere with the flow of water. Air pockets are usually not harmful, but they can be annoying.
If the noise starts just as you turn the taps on, this is likely the issue. To fix it, start from the taps nearest the meter and turn them all on one by one. Then turn them all off in reverse order. This will release the air pockets and should reduce or eliminate the water hammer noise. If this doesn’t work, there are other potential causes and remedies, such as:
Find And Secure The Pipe
If you have a water hammer problem, the first step is to try to identify the source of the noise. Water pipes are often located in walls, behind cabinets, or in crawl spaces, so it may take some detective work to find the offending pipe. Once you have located the pipe, check to see if it is loose. If it is, try tightening the fittings or supports.
Close Your Valves Halfway
If you suspect that you have water hammer in your home, the first step is to check the water pressure. If it is higher than 80 psi, you will need to have a plumber lower the pressure. In the meantime, you can try to ease the water hammer by closing the valves halfway. This will help to reduce the amount of water flowing through the pipes and lessen the severity of the problem. You can also replace your intake connections with wider hoses.
Invest In Water Hammer Arresters
These devices are installed near your valves and help to absorb the shock of the sudden change in pressure, preventing the loud banging noise. Arresters are relatively inexpensive and easy to install, so they’re a great way to protect your plumbing system from water hammer damage.
Try A Pressure-limiting Valve
A pressure limiting valve is a type of valve that is used to regulate the pressure in a water system. It is typically installed at the point where the water enters the system, and it is designed to open and close according to the pressure of the water.
If the pressure in the system gets too high, the valve will open and release some of the water. This helps to protect the pipes and other components from damage due to excessive pressure.
Similarly, if the pressure drops too low, the valve will close and prevent water from flowing out of the system. Pressure limiting valves are an important part of any plumbing system, and they can help to prevent a variety of problems, including water hammers.
When You Should Call A Plumber For Water Hammer
While water hammer is usually nothing to worry about, there are times when it can be a sign of a serious problem. If the banging noise is accompanied by decreased water pressure or leaks, then it’s time to call a plumber.
Water hammer can also be caused by an obstruction in the pipe, so if you notice that your taps are starting to sputter or cough when you turn them on, this is another red flag. Ultimately, if you’re not sure whether or not you’re dealing with a simple case of water hammer or something more serious, it’s always best to err on the side of caution and contact a professional.