Waterway system and water purification equipment

The utility model discloses a waterway system and water purification equipment, the waterway system comprises an integrated composite filter element, the composite filter element is internally provided with a water storage assembly; a first water path is arranged between the water inlet end of the reverse osmosis filter element and the water outlet end of the front filter element, and a second water path is arranged between the water outlet end of the reverse osmosis filter element and the water inlet end of the rear filter element; the water inlet assembly is used for conducting or cutting off the first water path; the third water path is used for conducting the first water path and the second water path; and the backflow assembly is used for conducting or cutting off the third water path. According to the technical scheme of the utility model, the TDS value of water retained in the waterway system is reduced, so that the first cup of water has a lower TDS value when the whole waterway system produces water again.