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Disconnect Water Supply and Remove Old Fill Valve

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What happens here

Using a pair of adjustable pliers, disconnect the water supply line from the bottom of the old fill valve. Then, use the pliers to loosen and remove the large plastic mounting nut that secures the old fill valve to the bottom of the toilet tank. Once the nut is removed, the entire old fill valve assembly can be pulled up and out of the tank.

Goal: Completely detach and remove the old toilet fill valve

Tools and materials

  • Adjustable Pliers Knipex Cobra — Loosening and tightening nuts and fittings
  • Old Fill Valve Mounting Nut — Securing the old valve to the tank, which needs to be removed
  • Old Toilet Fill Valve — The entire assembly being removed from the tank
  • Old Water Supply Line — The line connecting to the old fill valve that needs to be detached