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Flow Rate.

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The article explains the development of flow rate performance in drinking water treatment devices and describes why truu original water guarantees 1 liter per minute at 4 bar mains pressure using the direct-flow process. Additionally, it presents factors influencing flow rate as well as service and warranty benefits.

Challenge in drinking water purification

When the first water treatment devices came to market that produced clean water via steam distillation, the production capacity for 1 liter was approximately 4 hours. The first-generation reverse osmosis systems worked with a tank system and were able to significantly improve the production result to 5 liters per hour. The next generation of direct-flow systems was then able to increase the performance to 0.5 liters per minute.

truu original water

truu drinking water treatment systems operate with high-tech membranes in the latest generation direct-flow process. This means that water is produced only when the drinking water tap is opened. During this process, the water passes through all 8 treatment stages and also passes through the high-tech membrane with a diameter of 1 millionth of a hair. Compared with existing market technologies, we produce cell-available water of the highest quality with an exceptional flow rate. This makes preparing perfect drinking water child's play.

truu original water guarantees 1 liter per minute

As a market leader in drinking water treatment, we at truu maintain very high standards and guarantee a flow rate of 1 liter per minute at 4 bar mains pressure, plus/minus 20%. Incidentally, the flow rate also depends on the different water temperatures in summer and winter. However, the main factor for flow rate is the water pressure present at the house connection. Therefore, the higher the water pressure in the line, the higher the flow rate. The lower the water pressure, the lower the flow rate. Fluctuations in flow rate are therefore normal. Should production performance fall below 0.6 liters in exceptional cases, our service team quickly and straightforwardly provides a solution through optimization or component replacement. Through our long 30-year warranty and our network of professional service technicians, every customer has the assurance of enjoying truu original water in its original quality for many years to come.

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As of 27/08/2026 · Version 1
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