We have a shower faucet made by Kohler, T15101-4S. One day the water stopped coming out. After replacing the pressure regulator (2 cartridge shape) and the stem adapter, it became erratically. Sometimes water came out even though the handle is turned to off. Sometimes water wouldn't come out. Sometimes the water couldn't be shut off so we had to shut off the main water. I called Kohler. They said it's a water-balancing problem between hot and colder water. How could I fix it? It's also worrisome to see the faucet doesn't have anything to shut off the water mechanically. The water can come out when nobody is at home. Thanks!
It sound to me like bad pressure I think you need to add a pump to your main .
Ever since the pressure balancing regulations came out for shower valves, they have went from simple to very complicated devices. sounds as if some foreign material caused the valve to stop working. that valve is quit difficult to reassemble correctly because there is only one way it works and can be assemmbled many ways that do not work concerning alignment of the ports. if you dissassemble it and check that all the moving parts are functioning in the balancing cartridge you can then look closely at the alignment of the ports on the cartridge that the handle is connected to. understanding how the port align as the handle is turned should assist you in assembling it correctly......hope this helps.
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It doesn't look difficult to align the parts. The pressure regulator only goes in one-way and it doesn't move. The stem adapter lines up with the pressure regulator easily. Only the inside of the stem adapter rotates with the handle.
I was wrong saying that the faucet doesn't have anything to shut off the water mechanically. The stem adapter has two openings that are pressed against a plate to shut off the water. The problem is it doesn't work sometimes. The faucet seems work a few minutes then the water would come up while the faucet is shut off. It's crazy.
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