Pool Filter Pressure 30 Psi – 5 Main Reasons and 5 Easy Solutions to Fix High Pool Filter Pressure


pool filter pressure at 30 psi

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Pool filter is an extremely important device that is responsible for keeping your swimming pool clean and hygienic.

In addition to this, it enhances the efficiency of the pool’s chlorine level and helps to create a safe pool ecosystem.

Thus, it is an indispensable part of every type of swimming pool.

Today, in the market, you will find mainly 3 types of pool filters such as sand filters, cartridge filters, and diatomaceous earth (DE) filters.

You can choose any one of them as per your pool requirement.

But from the cost point of view, pool sand filters are the least expensive ones while DE filters are the most expensive ones out of the three.

The basic working principle of pool filters is not that complicated.

Generally, the pool pump creates a suction that enables water to enter the filter from the pool.

Pressure is thus created that circulates the water through the pool filter, heater or heat pump, chlorinator, etc, and all the other equipment.

The filtered water is then diverted back to the pool.

Thus, we can say that without the pool filter pressure, the circulation of water through the pool equipment is not possible.

Usually, pool filter pressure under normal working conditions, falls within the range of 10 PSI to 25 PSI ( PSI stands for pound per square inch).

However, in case of a fault in the system, a deviation from the normal filter pressure value is observed.

In some cases, you may see pressure rising above and beyond 30 psi.

This deviation directly impacts the circulation of water in the pool and the pool filtration process gets hindered.

Now you might be wondering if there is any specific pool filter pressure value for reference.

But you will be surprised to know that there is no such specific value for our reference.

Every swimming pool has its baseline pressure value.

This value depends on the factors like the size of your swimming pool, pump size, cleanliness of the pool filters, etc.

Generally, the baseline pressure value of the pool is measured during the installation of the pool filter.

But if that is not done, then you can still measure it after the backwashing process.

The value thus recorded can be used for all the future references.

One important aspect of your pool filter pressure is that it is an indicator of the pool’s health.

Thus, by keeping an eye on the pressure value, users get the idea of when the filter needs to be cleaned or replaced, etc.

As discussed above, an error in the pool device system causes a deviation in the pool pressure value.

Depending on the cause of the error, this pressure value might be either too high or too low and sometimes even zero.

When the recorded value is too low i.e. less than 10 PSI, it is called a low-pressure condition.

Now if the recorded pressure value is more than 25 PSI i.e. around 30 PSI, it is a high-pressure condition.

The main reason for developing a high pool filter pressure is dirty and clogged filters.

In addition to this few other factors also contribute to the formation of high pressure in the pool filter.

The high pool filter pressure is a serious condition that should be fixed immediately as soon as you notice it.

If you delay the repair process and keep on using the device in such a condition, the filter tank may rupture due to excessive pressure.

It can cause harm to the swimming pool users in case the pool pump system gets exploded.

In this article, I will discuss about the 5 main reasons that causes high filter pressure and then will also provide 5 simple solutions to fix this problem asap.

Top 5 Reasons and 5 Simple Solutions to Fix High Pool Filter Pressure

The major 5 reasons which contribute to the formation of high pool filter pressure are discussed below.

Reason 1: Dirty and Clogged Pool Filter

The primary function of the pool filter is to trap or remove dirt and debris from the pool water when it is passed through it.

But after some time, dirt and impurities start to build up in the filter and the collected debris starts clogging the pool filter.

This obstructs the flow of water through it and causes a high-pressure build-up inside the filter system.

Solution 1: Clean the Filters Regularly

The only way to fix the issue is by regular cleaning of the pool filters.

In the case of sand and DE filters, you can backwash the filters regularly.

But in the case of cartridge filters, you need to remove the cartridge first and clean them manually.

Reason 2: Larger Pump Size

The size of the pump plays a crucial role in the pool filter operation.

It should not be too small or too big.

Now if you have installed a bigger pool pump, it is likely that the pool filter pressure will rise gradually.

All pool filters are designed with a specific maximum flow rate.

When a bigger pump is installed, it can easily exceed the maximum flow rate of the filter and cause a high pool filter pressure.

Solution 2: Either Change the Pump or the Filter

To fix this issue, you must first compare the maximum flow rate of the pool filter with the horsepower and flow rate of the pool pump.

If you find the pump to be too large then either you have to replace the pump with a smaller one or the filter.

Now if you are using a variable speed pool pump, you can use it at a lower speed limit.

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5 Reasons that Cause Leaking of Pool Filter from Backwash

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Reason 3: Use of Wrong or Too Much Filtering Media

This is applicable in the case of sand and DE filters.

In both sand and DE filters, a filtering media is used to remove the dirt and impurities from the pool water when it is passed through it.

Now using too much or inferior-grade filtering media hinders the smooth flow of water.

This causes a high pressure to build up in the filter tank.

Solution 3: Check and Replace Filtering Media if Required

The first thing that users need to do to fix the issue is to remove some filter media and check the pressure value.

If it still displays a high-pressure value, then replace the filtering media completely.

Do not compromise on the quality of filtering media.

Invest in a high-grade DE powder or sand media for the best result.

Click Here to Get High Grade Filter Media for Your Pool Filter.

Reason 4: Wrong Size of the Water Jets

When the size of the water jets is smaller than the required size or the fittings around it are not wide, the flow of water gets hindered.

This leads to the formation of high pressure inside the pool filter.

Solution 4: Install Right Sized Water Jets

The only option to solve this issue is to replace the smaller size water jets with the appropriate size.

This will normalize the flow of water in the system.

Once the water circulation gets stabilized, the pool filter pressure will slowly get back to the normal value.

Click Here to Get Smaller Sized Water Jets for Your Pool Filter.

Reason 5: Clogged Breather Tube

Breather tubes are responsible for removing any excess or unwanted air that may be trapped at the top of the pool filter.

Now if the tube gets clogged, the amount of air in the system automatically rises.

This obviously causes high pool filter pressure in the process.

Solution 5: Unclog or Clean the Breather Tube

The first step to fix it is to switch off the device and allow the pressure to release.

Then open the system and inspect the breather tube.

Now check for any dirt or debris in the breather tube.

If you find one then wash it off using the hose.

Once cleaned, place it back and start the pump.

Also, if you find the tube is worn out or damaged then replace it with a new one.

This will prevent the occurrence of any future disturbances in the filtration system.










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