Patent ID: 7892419

Claim:
Device for treating water which comprises a main canalization comprising a supply for water to be treated; a treatment tank which is provided with a treatment medium; a pipe which connects the supply to the inlet of the treatment tank and which is provided with a valve; a drain; a pipe which connects the outlet of the treatment tank to the drain; a regulator; a bypass which is provided with a valve and which connects the supply to the drain; wherein, in the main canalisation are provided a first shut-off valve and a second shut-off valve which are located on either side of the regulator; a first shunt canalisation which bridges the first shut-off valve and the regulator, and a second shunt canalisation which bridges the regulator and the second shut-off valve, wherein the first shunt canalisation and the second shunt canalisation each comprise a shut-off valve, and wherein the first and the second shut-off valve are open during a treatment phase and are closed during a rinse or regeneration phase, whereas the other shut-off valves are open during a rinse or regeneration phase and closed during a treatment phase.