Integrated waterboard for a water purifier

A reverse osmosis (RO) water purification device comprising an integrated waterway, a prefilter (PF), an RO membrane (M) and a post-filter (PoF) for purification of water,

• wherein said integrated waterway comprises:
• a) a pre-filter component (1) in fluid communication with said pre-filter (PF), where said component (1) comprises an input (1a) for tap water, a dispensing output (1b) for pure water, a flow out (1c) for reject water, an output (1d) for flow of said tap water into said prefilter and an input (1e) for flow back of pre-treated water from said pre-filter (PF), a pilot-operated solenoid valve (1f) having an electro-mechanical solenoid (1g) and a hydraulic part (1h) which is integrally molded with the pre-filter component (1);
• b) an RO component (4) in fluid communication with said RO membrane (M);
• and,
• c) a post-filter component (2) in fluid communication with said post-filter (PoF), where said component (2) comprises a post-filter pilot-operated solenoid valve (2g) having an electro-mechanical solenoid (2h) and a hydraulic part (2i) which is integrally molded with the post-filter component (2),
• wherein said pre-filter component (1) is removably connected with said post filter component (2) and said post filter component (2) is removably connected with said RO component (4) via a removable connector (3), wherein each solenoid valve (1f, 2g) comprises a removable electro-mechanical solenoid and a non-removable hydraulic part which is integrally molded with the pre-filter component (1) and said a post-filter component (2), respectively.