Abstract: A pull-chain shower valve is interposed between a pipe stub and a shower head of a typical shower and allows a user to turn the water on and off at the shower head assembly without the need to use the main valve controls of the shower. The device uses a ball valve that articulates between an open position wherein water flows out of the shower head and a closed position wherein water does not flow out of the shower head. A standard pull-chain assembly is used to articulate the ball valve between its open position and its closed position. A pull-chain of the pull-chain assembly is pulled in order to advance the ball valve to its next position. Each sufficient pull of the pull-chain advances the ball valve exactly 90 degrees. If the pull-chain is not pulled sufficiently, the ball valve resets to its prior position. A reset mechanism is provided for the pull-chain.