Why Does My Shower Pulsate? (Here’s What to Do)

Why Does My Shower Pulsate?

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Why Does My Shower Pulsate?

One common problem that you might find addressing is a pulsing faucet. There are scores of reasons you might experience a pulsing faucet.

Depending on the faucet styles and brand, there could be diverter rattling in the faucet that might cause this condition.

On the other hand, a loose washer might be behind your shower pulsate. All you need to do is to have the faucet taken apart and inspected for repair.

Additionally, your shower might pulsate to indicate that your tank lacks enough pressure. When water surges in the pipes, it will lead to this condition.

If the pressure decreases as the water gets away, the pump starts again.

Normally, this results from a blockage in the hose (if fitted), a scaled-up shower head, or a blockage in the shower valve.

Additionally, the pulsing will occur notwithstanding the temperature setting on the shower.

Besides, your faucet might also shake as a result of the water hammer. This is a term referring to air trapped within the water pipes.

This air will compress when running water headed to a particular faucet is suddenly turned off. In addition to shaking the faucet, this “hammering” will also shake the pipes.

To fix the water hammer, you will start by turning off the water supply to your house.

Identify the valve at the lowest part of your home and open it at a high location like a second-floor bathroom.

This faucet should drain until nothing comes out. Proceed to close it and turn the water main back on.

Why Does My Shower Pulse Hot And Cold?

When you get into your bathroom to take a shower, there is nothing you desire more than a constant temperature, just the way you set it.

However, at times, the water will pulse hot and cold, leaving you frustrated and disappointed. Several factors might lead to this condition.

Read on to familiarize yourself with some of them.

First, if there isn’t enough water in the shower, or the water is tepid, it will lead to the water in your shower pulsing hot and cold.

This results from the microswitch getting burnt out, failing to allow power through the elements.

For instance, one of the elements inside might have burnt out, meaning the shower will only be working at half power.

On the other hand, your shower might run hot and cold if there isn’t enough water getting to the shower.

Therefore, ensure that the valve coming into the house is open and the valve on the line to the shower.

But if these are fully open and you still have the problem, there could be a problem with your shower’s flow valve inside the shower.

If you confirm this to be the case, you might need to replace it. A flow valve might be simple or relatively sophisticated, depending on the manufacturer and shower model.

For instance, the Redring valve is fairly simple, while the stabilizer valve/pressure switch is a fairly sophisticated device.

Again, a thermal cut-out might be the problem or even the activation of the PRD (Pressure Relief Device).

Why Does My Shower Not Stay Hot?

There is scarcely any other way to start a day in a bad way than the hot water running out as you enjoy your morning shower.

While it’s quite annoying to finish showering in cold water, your problem might have been caused by a simple issue that could be fixed easily.

The reason might be that there are other demands currently being placed on the system, like heating the radiators with water.

Why Does My Shower Pulsate?

If this is the problem, you should be getting your hot water back within moments.

However, if the problem emanates from a malfunctioning water heater, you will need to investigate the matter further.

Temperature control might be the reason behind your problems. Therefore, do not rush to call your plumber yet.

It’s needful to ensure that you do not have a problem with the water heating unit.

First, establish if the temperature control has been set properly or if there are any blown fuses.

Peradventure these are the causes behind the lack of hot water in your shower, then they can be fixed fairly easily.

But if you have a dire situation, you might need to get your plumber to address the issue. 

Sometimes, hot water can turn cold while showering, even though hot water is on tap elsewhere in the property, such as the kitchen.

This could be because of a faulty shower valve in the bathroom. Your shower valve might deteriorate over time and therefore fail to function properly.

The rubber parts are more susceptible to this. When heated water passes through, it might make the rubber distort and swell, hence inhibiting water flow.

What to Do When Your Well Water Is Pulsating

If your water is pumped from a well, you might have noticed that it pulsates instead of flowing steadily.

Your well water gets to your house from your well water pump, distributing it throughout your home.

Consequently, it’s proper to consider your pump an integral part of the system in this setup.

But with water pulsating from your taps, this is indicative of potential problems in your pump.

Before I discuss what to do when your well water pulsates, it’s first to show you why the pulsating is first.

Usually, the most common cause of well water pulsating is inadequate pressure in the tank.

This pressure is regulated by the electric pressure switch and the internal air bladder in your water tank.

One of these malfunctions, and you have pulsating water from your taps. But what can you do when your well water pulsates?

It’s essential to first bring the pulsating to a stop. If you allow prolonged water surges, your water lines can be damaged.

On top of this, you risk damaging your plumbing fixtures. You might want to start by checking the pressure.

With a few tools and knowledge, this should not be hard. But if this is your home and well (not rented).

I recommend calling professional technicians to check the air pressure inside your water tank.

However, if you still wish to handle the issue without involving a professional, shut off the electricity and drain the well for your safety.

Get hold of a tire air pressure gauge and identify the well’s air bladder valve, which resembles a tire air valve.

The recommended pressure is anything between 20 and 30 PSI. And this is the reading you will be expecting.

If your pressure is constant within this range, look for the problem elsewhere and spare the air bladder of any more torture!

This is where a reputable water specialist comes in handy. Call them and let them identify the problem and address it.

This is because of the sensitivity of the issue, having no room for any mistakes. Remember, your drinking and bathing water is dependent on this setup.

What Does It Mean When Water Pressure Fluctuates?

Has your shower water ever turned ice-cold suddenly as you were taking a relaxing shower? If this has ever happened to you, I am sure you wouldn’t want to get there again.

But what do you do when you have incidences of fluctuating water temperatures in your home? You will want to check your plumbing system.

Issues within your plumbing system can cause fluctuation in water temperatures.

The first thing you want to do is to check your water heater size and type.

Indeed, unexpected running hot water and cold water at other times might mean that your water heater is dated and under-powered.

The design of the water heater is in different sizes and types. These are meant for specified water amounts.

Getting the wrong size and fitting it in your plumbing system might get you into water pressure fluctuations.

Additionally, some of these are designed for gas, while others are designed for electric models.

Again, if you have uncontrollable water heating, you have a serious problem. You will need to isolate the problem by testing the water temperature with one shower.

All other water-consuming appliances should be kept off. If you establish that the water temperature remains consistent with the conditions, your problem is with other variables.

To test the temperature, get two showers running. Fluctuation in temperature means that you have an insufficiently-sized water tank.

You can also inspect your water heater. There is no good reason you should disassemble your water heater without expert plumbing experience.

Use a visual inspection to examine your water heater to identify problems, checking your water heater’s manual for safe maintenance instructions.

Will An Airlock Clear Itself?

No, it’s highly unlikely that an airlock will clear itself. Let’s familiarize ourselves with how this happens to see how impossible it is to have an airlock clear itself.

Yes, after turning on your faucets, you might see water sputtering or spitting out air. This means that there is trapped air in your pipes.

This condition is called airlock, and it works similarly to a restriction.

Consequently, it will lower the smooth flow of water in your house and your water pressure.

When it gets serious, it will eventually shut off the water to your faucets.

An airlock might come about when a homeowner or municipality temporarily shuts off and drains water to the house during maintenance.

Providing an opportunity for air to enter the pipes. Using a well system might result from other factors like a faulty pump, pressure tank, or even drought.

Because a vacuum cannot exist in your water pipes, air will occupy the space in your pipes created during the maintenance procedure mentioned above.

After you are done and turn back the water flow into the pipes, you will have air trapped in the pipes, creating an airlock.

To address this problem, you will need to bleed off the trapped air out of your water pipes by shutting off the water supply to your house and then draining the water in the pipes.

Check also the plumbing fixtures by turning on all faucets and draining every appliance in your home.

After you are done, turn on the water supply, allowing it to flow through all faucets for about 15 minutes.

Additionally, flush all the toilets and then run rinse cycles on your dishwasher and your washing machine.

When Should I Replace My Water Pressure Tank?

Usually, a well-maintained water pressure tank will last 25 years or more. However, you will find that these tanks are warranted for about five years.

If you fail to maintain your tank properly, the air charge in the tank will drop significantly, making the water tank bladder stretch and rupture.

Bathtub Overflow Drains So Low

More often than not, this will take the pump with it.

While high-end pressure tanks will last beyond 25 years, budget-friendly-cheaper pressure tanks might not last five years.

On average, a high-quality, properly sized pressure tank whose water is always clean should be lasting an average of 15 years.

Regarding the appropriate size for a pressure tank, bigger almost always turns out to be better.

With a bigger tank, you will get more water stored and, consequently, a longer run time dictates fewer cycles.

How Do You Get The Air Out Of Pipes?

You can get all sorts of strange noises from plumbing systems. Indeed, such sounds are used as a cheap scare in horror movies.

These noises indicate that you have air in your pipes, and you can bleed out this air from your pipes.

Start by turning off the main water supply valve, opening all faucets, and turning on your water supply.

Because we discussed this above, there is no reason I should tire you with repetition.

However, I need to mention that this is a fairly simple DIY project that does not require you to fire any plumbing professional.


A shower pulsates due to inconsistencies in pressure.


Hi! I' am Tom. I was a manager in one of the biggest stores for over 10 Years, am also an SEO by night. I don't like to call myself a blogger; they are very analytical, do email marketing, and know all SEO stuff. I faced many questions from customers about different products, and there was hardly any help on the internet. After learning all the things about these products as a manager the hard way, I decided to start a blog and help other people.

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