Plumbing Fittings Question:
High Pressure Makes My Toilet Run (with new ballcock)?
Answer:
If your water pressure is so high that it leaks past a Fluidmaster 400A or another new ballcock (aka: "toilet fill valve") - then you NEED a pressure reducing valve. Other water pipes, connectors, clothes washing machine hoses and your water heater could leak or break. Best to get a pressure regulator if your pressure to the house is more than 60 pounds (80 is code throughout most of the U.S.).
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