Reverse Osmosis Filter Malfunctions and How to Fix Them

The reverse osmosis water purification system consists of many components. In addition to the hoses and pipes that connect the parts, it consists of three filters and a specialized membrane that creates the filtration effect. However, such several components make even the most reliable system vulnerable since each can fail.

In this article, we will look at the types of reverse osmosis malfunctions, how to deal with them yourself, and when it is best to call a cheap RO repair service. You will learn why the most common breakdowns occur and how to fix them.

The main reasons for the failure of the reverse osmosis filter

A reverse osmosis system consists of several central components:

• pre-filter, which works to protect the osmotic membrane from aggressive additives in water;
• membranes that separate impurities from liquid using the reverse osmosis method;
• a post-filter that captures the smallest particles that can pass through the previous stages of purification;

Over time, filters become clogged – this can happen gradually or suddenly, for example, when an accident in the water supply system and stagnant water is released. Because of this, the reverse osmosis hums makes other strange sounds and begins to work incorrectly, reducing both its productivity and drinking water quality. Such external signs of failure are a reason to urgently check the system’s operability.

Among the most common problems, we note:

• Clogged purification cartridges. As mentioned above, filters are a vital part of the reverse osmosis system, so interruptions in operation are most often associated with them. To identify the problem, you need to measure the pressure before and after the pre-filter. If the difference is noticeable, then the cartridge needs to be changed – it is clogged and does not pass water as effectively as before;
• Reducing the pressure in the tank. This part of the reverse osmosis system is pumped up at the factory. In an empty tank, the pressure should be up to 0.6 atmospheres. If it is not enough and the water flows too slowly again, this can be adjusted with specialized devices;
• Leaking valve. Drainage occurs as the cleaning tank fills and stops when the tank is full. If this does not happen, the valve will not hold the pressure and leak – it needs to be tightened or replaced.

Above, we have listed the most common problems in standard reverse osmosis purification systems. Below, we will look at them in detail and tell you what to do.

The tap for pure water from reverse osmosis has a weak pressure.

The most common problem is low pressure in a reverse osmosis filter. The fact is that the reverse osmosis cleaning process itself is pretty long. Therefore, the system has a storage tank- the so-called hydraulic accumulator- to supply drinking water in large volumes, such as cooking. If access to the tank is blocked, the filter will work idle since the water is drained into the sewer.

To fix the problem, it is worth checking the taps and tubes – they may be closed or pinched, causing the purified liquid to flow directly into the drinking tap. If there are no breakdowns with them, then the reason for the low pressure is the poor operation of the tank itself.

The reverse osmosis filter is leaking.

The cleaning system is usually installed under the sink or in other closed places. Therefore, it is challenging to detect a leak there quickly. If water accumulates on the floor, the main reasons may be:

• A breach of the tightness of the connected tubes – either they were not fully inserted, or their ends were cut carelessly. Because of this, water finds an outlet and leaks out;
• Weak threads – all threaded connections must be tightened to the stop for complete system tightness. Otherwise, their weakening will lead to a decrease in pressure and periodic leaks;
• Lack of sealing rings – they serve directly to improve the tightness of the connections, so repair the reverse osmosis filter with their installation by contacting any RO service near me.

Excessive pressure in the water supply system – 6 atmospheres or more – can also cause leaks. You can reduce it manually using a reducer; otherwise, you will have to wait until the situation in the house improves.