Shows how to flush debris and clean a Fluidmaster 400 series toilet fill valve. Common symptoms of a dirty toilet fill valve are a constant hissing sound, slow fill, fill valve won't stop running or tank water level is flowing over the flush valve overfill tube. This video also discusses the replacement of the Fluidmaster main fill valve seal 242.

Other Know How Now videos that you may find helpful:
How to Replace Toilet Fill Valve Fluidmaster    • How to Replace Toilet Fill Valve Flui...  
How to Adjust the Height of a Fluidmaster Fill Valve While it's in the Tank    • Adjust Height Fluidmaster Fill Valve ...  

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