A water recycling system for reprocessing and reusing bathing water from a bath or shower. The bathing water recycling system treats and reuses water that overflows from a bathtub or shower pan. The used bathing water is captured and retained after use. The captured dirty water is then filtered and purified. The filtered and purified water can be redistributed back into the shower or bathtub for reuse alone or in combination with additional fresh water. The treated water may also be rewarmed prior to reuse. Unneeded greywater water is redirected to the drain for disposal.