How to Adjust Water Purifier Tank Air Pressure?

For your water purifier to operate in a healthy and efficient manner, not only the filter but also the tank section of the water purifier must be checked regularly. In particular, the air pressure adjustment of the tank directly affects the water output and performance of the device. When the air pressure is too low or too high, the water flow in the system can be disrupted. Therefore, learning how to adjust the pressure is very important. In this article, we will cover in detail how to adjust the air pressure of a water purifier tank.

How to Choose a Water Purifier Tank – What Should You Pay Attention To?

There are several factors to consider when choosing a water purifier tank. These include:

• For small to medium-sized households, choose a tank between 8–12 liters; for larger households, choose between 12–20 liters.
• Water purifier tanks are available in two types: stainless steel and plastic. Steel is durable but expensive, while plastic is more affordable but has a shorter lifespan.
• The average pressure capacity of a water purifier tank should be around 5–7 PSI.
• Check whether your plumbing is compatible with the water purifier tank.
• Purchase from reputable brands that offer warranties on their products.
• Clean and ventilate your water purifier tank at regular intervals.

When selecting a water purifier tank, not only the capacity and material quality but also the price are important factors. Water purifier tank prices vary depending on size, capacity, and material quality. For updated prices, you can visit our water purifier tank page to check our products.

How to Adjust Water Purifier Tank Air Pressure?

To adjust the air pressure of a water purifier tank, you should follow these four steps:

• Completely drain the tank.
• Measure the current pressure using the air valve on the tank.
• Set the pressure to the ideal level of 7–8 PSI.
• If the pressure is too high, release air through the valve; if it is too low, add air through the valve.
• After adjustment, check the pressure again and ensure the tank is working properly.

What Should the Water Purifier Tank Pressure Be?

The ideal air pressure for a water purifier tank is between 5–7 PSI. This pressure ensures that purified water flows quickly and efficiently from the tap. If the pressure is too low, the water flow will be slow; if it’s too high, the efficiency of the device may decrease.

Additionally, having a high tank air pressure does not mean you will have high-pressure water for a long time. You may get high-pressure water for a short period, but as the pressure increases, more stress is placed on the pipes, which can cause cracks or breaks—leading to higher costs and more labor.

Why Is Air Pressure Important in a Water Purifier Tank?

In water purifiers, the tank's air pressure plays a critical role in ensuring the system operates efficiently. If the air pressure is not properly adjusted, the tank may not store enough water, or the water flow from the tap may weaken. This reduces user comfort and negatively impacts the device’s performance.

If your tank’s water flow has decreased or the device is cycling frequently, one of the first things you should check is the air pressure. The ideal value is generally around 7–8 PSI, and you can measure it with a digital manometer. If the pressure is too low, water output decreases; if it’s too high, the diaphragm may be damaged.

Correct use and regular maintenance of the device not only extend the life of the tank but also help maintain the water pressure at its ideal level; for more details, check our water purifier tank lifespan article.

Frequently Asked Questions

What is the ideal air pressure for a 12L water purifier tank?

For a 12-liter water purifier tank, the ideal air pressure is generally between 5–7 PSI. This ensures smooth and fast water flow.

Can a water purifier work without a tank?

A water purifier can work without a tank, but the water flow from the tap will be very low, and it will be difficult to get water instantly. The tank stores purified water and ensures efficient water flow, so without it, the device operates inefficiently.

What happens if too much air is added to the water purifier tank?

If too much air is added to the water purifier tank, the water flow will be faster and at higher pressure. However, this can put excessive strain on the system, shorten the tank’s lifespan, and create a risk of leakage. Additionally, if the tank’s pressure is too high, the air chamber inside the tank may be damaged.