Under ideal conditions, you would hear nothing from your plumbing system except the sound of running water when you turn on the tap. Unfortunately, that is not always what actually happens. In fact, your plumbing can make all types of funny and sometimes alarming noises for no reason that you can easily discern.
For instance, one common plumbing noise sounds like a hard knock or hammer blow. This usually occurs when you turn off a tap and can be rather alarming. Sometimes you can even feel the reverberation of the impact that caused the sound. But why is this happening? Usually, this “water hammer” noise is the result of the dramatic shift in pressure in the system when you suddenly stop the flow of water from a faucet.
This sudden stop creates a kind of shock wave, which then travels back through the pipes and causes the loud knocking sound that you hear. This is easily fixed with a device that is known as a water hammer arrester. These devices help to dissipate the force of the pressure shift and can keep the noise from occurring at all.
There are also all kinds of whistling, squealing and squeaking noises that your plumbing can make under certain circumstances. These types of sounds are often caused by a worn out washer somewhere along the line that is having trouble regulating the flow of water. It can be a little difficult to pin down the source of these noises sometimes, especially if they occur no matter which faucet is turned on. But with a little hunting and trial and error you can usually track down the source.
Rattling sounds are also common and generally occur when your water pipes are not well secured to a rigid surface. If this is the case, the force of the water running through the pipes can cause the pipe to vibrate, creating the sound you hear as it bangs against whatever solid surface is nearby. For problems like this, simply securing the pipes in place better can put an end to all of your rattling issues.
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