If you are hearing strange noises in your home at night, it could be due to pipes knocking. This is a common problem that many homeowners face, and it can be a frustrating experience. The good news is that there are several ways to stop pipes from knocking at night. In this article, we will explore the causes of pipes knocking and provide you with a comprehensive guide on how to stop the noise.

Before we delve into how to stop pipes from knocking, let's first understand the causes of the problem. Pipes knocking at night can be caused by a variety of factors, including:

Water hammer: This is a phenomenon that occurs when water flows through the pipes and suddenly stops. The momentum of the water causes the pipes to vibrate, which results in the knocking sound.

Loose pipes: Over time, pipes can become loose due to the constant vibration from water flow. This can cause the pipes to rattle against other pipes or the surrounding walls.

High water pressure: If the water pressure in your home is too high, it can cause the pipes to vibrate and knock against each other.

Air in the pipes: If there is air trapped in the pipes, it can cause the water to surge and create a knocking sound.

Now that we know the common causes of pipes knocking at night, let's look at how to stop the noise.

Install water hammer arrestors: Water hammer arrestors are devices that can be installed in the plumbing system to prevent the knocking sound. They work by absorbing the shock of the water and preventing the pipes from vibrating.

Secure loose pipes: If the knocking sound is caused by loose pipes, you can secure them using pipe straps or foam insulation. This will prevent the pipes from rattling against other pipes or the surrounding walls.

Reduce water pressure: If the water pressure in your home is too high, you can install a pressure reducing valve to regulate the water flow. This will prevent the pipes from vibrating and knocking against each other.

Bleed air from the pipes: If there is air trapped in the pipes, you can bleed it out by turning off the water supply and opening the faucets. This will allow the air to escape and prevent the water from surging and creating a knocking sound.

Pipes knocking at night can be a frustrating problem to deal with, but it is not impossible to solve. By understanding the causes of the problem and implementing the solutions we have provided, you can stop the noise and enjoy a peaceful night's sleep. Remember to install water hammer arrestors, secure loose pipes, reduce water pressure, and bleed air from the pipes. With these simple steps, you can say goodbye to pipes knocking at night for good.