Single-handle shower valves control both water flow and temperature through a cartridge system that mixes hot and cold water internally. When the internal cartridge wears or shifts, water may fail to reach the spout even when the handle moves freely. Got a call from a Loganville homeowner experiencing exactly this issue—their tub faucet lever moved normally, but no water flowed through. Upon inspection, we found the valve cartridge had lost its seal, preventing water from passing through the mixing chamber to the tub spout. We shut off the water supply, removed the trim and handle assembly, and extracted the failed cartridge. After cleaning the valve body of any debris, a manufacturer-matched replacement cartridge went in and the fixture was reassembled. Testing confirmed full water flow and proper temperature control restored. Learn More about how Keep Smiling Plumbing takes care of valve failures that leave Lawrenceville area homeowners without working fixtures.
