Questions and answers - FAQ

Water filtration and reverse osmosis are comprehensive topics with a lot to cover. This small collection of answers to typical questions is intended to help you get started in the field of water fil tration and to help you find the right osmosis system or make the right purchase decision. Whenever you have questions about water, water filtration or technical issues, please do not hesitate to contact us or have a look at our new water filter service world product range. We are always at your disposal with our expertise.

Our water filter FAQ - for more answers

Reverse osmosis is a unique filtration process that filters out pollutants in the molecular/nanometer range. In reverse osmosis, tap water is forced through a fine-pored, semi-permeable membrane. This membrane consists of laser-perforated, ultra-fine pores, which ensure that the water molecules are pressed through the membrane, thus retaining up to 98.2% of dissolved foreign substances.

In regions with a high lime content in the water (from 12°dH - German hardness), a special lime pre-filter should be installed so that the UO membrane is not damaged or clogged prematurely. The lime pre-filter can of course also be found in our store under accessories.

The filter system removes all contaminants from the water that previously had a negative impact on the natural taste of hot and cold beverages. In the future, your drinks will taste even more natural and intense under optimal conditions, as they will be free of unwanted substances. Here you can read what 8 reasons there are for a water filter.

Under optimal conditions, i.e. sufficient water pressure (min. 3 bar), optimal installation site, etc., a system (e.g. our AS5000) produces between 150-190 liters of filtered water per day.

We recommend you to disinfect the filter system every 3-6 months. Read more about our disinfectants here. 

If the filter system has not been used for a longer period of time, e.g. after a longer vacation, drain the water supply tank for hygienic reasons and rinse the filter system. Important: If the unit is not used for a longer period of time, the membranes and the filters must be kept moist so that they do not dry out. We also recommend disinfection to prevent the formation of germs and biofilm in the entire filter system. You can see exactly how this works in one of our instructional videos for water filters.

Remember to change your filters regularly. Replace your filters and drain and flush the water supply tank. A water revitalization filter, such as the Vital Filter or Fresh Filter can additionally improve the taste of the water.

Problem solving

Solution: First check that the cold water connection is turned on and that the lever on the supply tank connection is open. Remember that it may take some time for the filtration system to produce enough water to build up the operating pressure to ensure optimum water pressure in the water supply tank. Check to see if a hose is kinked. Kinks in the hoses should be avoided at all costs.
If water still does not come out, go through the installation instructions a second time, step by step, and make sure you have done everything correctly. If the problem persists, please contact us.

Solution: Open the cold water connection and the tank connection.
If necessary, also make sure that you have inserted the activated carbon filter (GAC) into the housing "2" with the white ring facing upwards.

Solution: If the tank pressure is below 0.5 bar, you can change it by increasing the air pressure at the water supply tank using an air pump. Important Check the air pressure beforehand using an air pressure gauge (article no.: TD3). Since an excessively high air pressure could damage the water supply tank. Proceed with caution. To do this, loosen the blue cap and screw a car air pump onto the valve. After pumping a few times, check that the water pressure is sufficient by opening the tap or using an air pressure gauge.

Solution: The tank capacity of 8 liters indicates the gross water volume. The net volume of water is approx. 6 liters. The remaining 2 liters of volume are distributed over an air cushion. This regulates the air pressure.

Solution: The filter system is designed for a water line pressure of 3 to 6 bar. At a lower pressure, the amount of water filtered and the water quality will decrease. In countries outside Germany, the water pressure is often lower. In this case, you must install a booster pump.

Solution: If the water line pressure is too high, the system and the diaphragm may be damaged. In this case, you should install a pressure reducer.

Solution: Check the pressure in the tank to make sure it is not too low. The optimum pressure should be 0.5-0.9 bar, when empty. Increase the pressure as described in point 3.

Solution: This happens very rarely and is a sign that the automatic shutdown may be defective. Please contact us in this case.

Solution: Remove the water hose from the upper corner piece of the membrane housing. Now follow the hose to the automatic switch-off and turn it off at the automatic switch-off. Now fill a glass with this water. Taste the water and measure the conductivity with a TDS tester. If the water tastes good and the conductance shows a value of 1-50ppm, a defective afterfilter may be the cause of the bitter aftertaste. In this case contact us.

Solution: This is normal. The activated carbon filter must be soaked. The filter system must be flushed. Flush the system one more time.

Lösung: Sind die Dichtungsringe trocken und porös, sollten sie durch neue ausgetauscht werden. Sind die Dichtungsringe noch nicht sehr alt (1-2 Jahre), können diese auch leicht angefeuchtet werden, damit sie besser in das Gehäuse passen und es somit wieder effektiv abdichten können.

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