"Hi, We are desperate for a working water supply in the tub/shower. Just calledMmoen and they're sending us a knob (teardrop shaped. Pull to turn on water and left or right turn to adjust water temp) and I must go to home depot to get the cartridge. My question is: They said two weeks for part to arrive. Right now, when the knob is pulled, no water AT ALL. Is there any way to 'rig' it to get the water to come out so we can shower and/or bathe while waiting for the part? Thanks so much!! Randi"