I have delta 1400 series tub faucet that's been leaking a lot. I have ordered the cartridge to replace that will take about 10 days before it arrives. In the meantime, there's lot of water leaking and going down the drain. Is there a way to cut off the water supply to the individual washroom to stop the wastage of so much water? I turn off the water supply when no one is home but because of the tenants in the basement, can't keep the main water supply cut off all the time. Open to suggestions. Thanks!!!