Regular maintenance of your water treatment system is critical to ensure consistent performance and fluid quality. Equipment owners Atoll often face the need for a scheduled change of consumables, since the resource of any cartridges is limited. Ignoring routine maintenance can lead to a decrease in pressure in the storage tank and a deterioration in the taste characteristics of drinking water.
The procedure for replacing filter elements in reverse osmosis systems of this brand is quite simple, but requires compliance with a certain sequence of actions. Tightness of connections and proper O-ring positioning are key success factors. In this article we will analyze the maintenance stages in detail, look at the differences between cartridges of different stages and answer frequently asked questions.
Resource life of filter elements and signs of deterioration
Service life of cartridges in systems Atoll directly depends on the quality of the source water and the volume of its consumption. Standard mechanical cleaning pre-filters such as PP5 and PP10, usually last from 3 to 6 months, retaining sand, rust and suspended matter. Coal blocks CTO designed for 6 months of active work, during which they effectively remove chlorine and organic compounds.
The reverse osmosis membrane is the heart of the system and lasts much longer - from 1.5 to 2 years. Postfilter T33, installed after the tank, is changed once a year to maintain the fresh taste of the water. If you notice a change in taste, the appearance of an odor, or a decrease in the rate at which water enters the tank, these are sure signals that intervention is necessary.
- 💧 A sharp decrease in system performance and a long tank filling time.
- 👃 The appearance of a foreign taste or smell of chlorine in purified water.
- 📉 Pressure drop in the storage tank when the tap is fully open.
- 🛑 The replacement indicator is triggered (if the model is equipped with electronics).
It is important to understand that visual assessment the condition of cartridges is not always objective. Even if the filter looks clean, its sorption capacity may be completely exhausted. Therefore, it is recommended to keep a replacement log or use special date stickers, which are often included with the original cartridges Atoll.
Necessary tools and preparation for work
Before starting the procedure, it is necessary to prepare the workplace and tools. You don't need a complex professional tool, but having certain accessories will make the task much easier. Pay special attention hand cleanliness and the working surface so as not to introduce contamination into the system.
To dismantle the flasks you will need a special key, which usually comes with the filter Atoll. If it is lost, you can use a strap or strap wrench, but be careful not to damage the body of the bulb. Also prepare a container to drain the water, since liquid always remains in the lower part of the flasks and in the lines.
☑️ Preparing to replace filters
Be sure to close the water inlet valve before starting work. After this, open the clean water tap at the sink and wait until the flow stops - this will allow relieve excess pressure in the system. If your model is equipped with a pressure booster pump, be sure to disconnect it from the electrical outlet to avoid short circuits if moisture enters.
Step-by-step instructions for replacing prefilters
Replacing the cartridges of the first three stages is the most common procedure. Start by unscrewing the flasks counterclockwise using a wrench Atoll. Act smoothly, without jerking, so as not to break the thread. After removing the flask, pour out the water and remove the used cartridge.
Rinse the inner surface of the flask thoroughly with warm water without using household chemicals. Sediment may form at the bottom, which must be removed with a soft sponge. Inspect o-ring on the thread of the flask: it should be elastic, without cracks or creases. If necessary, lubricate it with food-grade silicone or just water to facilitate installation.
⚠️ Attention: Never use petroleum products, Vaseline or vegetable oil to lubricate rubber seals. These substances can destroy the rubber structure, which will lead to loss of tightness and leakage of the system under pressure.
Install the new cartridge strictly in the center, aligning the holes. Insert the flask into place and tighten it by hand until it stops, then tighten it slightly with a wrench. Excessive force is not required here and may damage the threads. After installing all three flasks, check the system for leaks by running water.
What to do if the flask does not unscrew?
If the flask is stuck, gently tap it with a wooden hammer handle in several places. You can also use a hairdryer to warm up the body of the flask (not the thread!) for 1-2 minutes - the plastic will expand and it will become easier to unscrew it. Do not use open flame!
Replacing the reverse osmosis membrane
Membrane element in systems Atoll usually located in the fourth flask and has a standard size. To replace it, you will need to remove the end cover of the housing. Unlike pre-filter flasks, this one uses a threaded connection or a bayonet lock that needs to be turned.
Remove the old element by grasping the central fitting. Be prepared for the fact that there may be pressurized water inside the case. New element membranes inserted all the way; It is important not to confuse the side with the sealing rings and the side with the purified water outlet.
| Item type | Resource (months) | Function | Replacement feature |
|---|---|---|---|
| PP5 / PP10 | 3-6 | Mechanics | Easy replacement in flask |
| CTO (Coal) | 6 | Chlorine, chemistry | Requires flask washing |
| Membrane | 18-24 | Purification up to 98% | Need time to stabilize |
| T33 (Post filter) | 12 | Taste | Replacement without flask |
After installing the membrane, assemble the housing and connect the pipes according to the diagram. Pay attention to the color of the tubes and markings on the body: Feed - water inlet, Concentrate - into the drainage, Permeate - into the tank. A connection error will result in the system running idle or discharging clean water into the sewer.
It is recommended to drain the first 2-3 tanks of water after replacing the membrane into the sewer. This is necessary to wash out the preservative with which the new element is impregnated and stabilize the cleaning quality.
Post-filter and mineralizer maintenance
Postfilter T33 and mineralizer Atoll They are flow-through cartridges in a plastic case that are connected via quick-release fittings. To replace them, you don’t need keys; just press the locking ring of the fitting and remove the tube.
When installing a new cartridge, cut the edge of the tube at a right angle with a special knife or a very sharp blade. An uneven cut can cause leaks or violation of the tightness of the connection. Insert the tube into the fitting until it stops, then pull it back - the retaining collet should clamp the tube.
The mineralizer enriches water with useful calcium and magnesium salts, restoring its natural structure. If you use the system for cooking in boiling water, the mineralizer can be temporarily turned off, since at high temperatures mineralization does not make sense, and the cartridge resource is consumed.
- 🔌 Disconnect the tubes from the old cartridge by holding the blue ring.
- 📏 Measure the required tube length for the new filter.
- ✂️ Make an even cut at a 90 degree angle.
- 🔗 Insert the tubes into the corresponding holes of the new cartridge.
Checking the system and eliminating leaks
After assembling all components, it is necessary to carry out a test run of the system. Open the water supply valve and carefully inspect all connections. In the first minutes, individual drops may appear, but they should disappear after the seals swell.
Open the clean water tap and wait for the water to flow. Since there is air left in the system, a mixture of water and air may come out of the tap with a characteristic hissing sound - this is normal. The process of filling the tank can take from 1 to 2 hours, depending on the pressure in the water supply.
⚠️ Attention: If you find any leaks, do not simply try to tighten the flask further. Disassemble the connection, check the position of the O-ring and that there is no sand on the threads, then reassemble.
Properly installed O-rings and no distortions during assembly guarantee no leaks. Do not use excessive force when tightening the flasks.
Check the operation of the drain valve. Water should flow into the sewer only while the system is operating (when the tap is open or the tank is being filled). If water constantly flows into the drain even when the tank is full and the tap is closed, the diaphragm valve may be faulty or the pressure in the system is too low.
Frequently asked questions (FAQ)
How often do you need to change cartridges in an Atoll system?
The complete set does not change at the same time. Pre-filters (1-3 stages) - once every 6 months, membrane - once every 1.5-2 years, post-filter and mineralizer - once a year. Following a schedule extends the life of expensive items.
Can cartridges from other manufacturers be used?
Systems Atoll use Slim Line standards. You can use cartridges from other brands (for example, PP5, CTO), if they correspond to the 10-inch standard size. The membrane can also be replaced with an analogue with the same performance (for example, 50 GPD or 75 GPD).
What should I do if the water flows slowly after replacing the filters?
Most likely, there is air left in the system or the valve on the tank is not fully open. Also check if the tubes are pinched. If the problem persists for more than a day, the membrane may be installed incorrectly or the drain restrictor may be clogged.
Do the flasks need to be disinfected every time they are replaced?
The use of aggressive chemicals is not recommended. It is enough to rinse the flasks thoroughly with warm water. If the system has not been used for a long time, you can wipe the inside surface with a weak solution of hydrogen peroxide and then rinse it repeatedly.
Why does the pump hum after replacing the filters?
The humming noise may be caused by air in the system or too low inlet pressure. Let the system run for 15-20 minutes, the air should come out. If the noise persists, check the tightness of the suction line.