Running Toilet or Phantom Flush
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Common Water Issue in BC

Running Toilet or Phantom Flush

A toilet that runs intermittently or makes running water sounds between flushes is wasting water and silently increasing your water bill. The issue is almost always a worn flapper valve or fill valve that fails to seal properly. While usually a simple fix, a running toilet can waste 200+ litres per day if left unrepaired.

Possible Causes

  • Worn or misaligned flapper valve not sealing the flush valve opening
  • Fill valve not shutting off at the correct water level
  • Handle or flush linkage sticking in the open position
  • Mineral buildup on valve seats preventing proper seal
  • Cracked overflow tube allowing water to continuously drain

Recommended Steps

  • 1Remove the toilet tank lid and observe the fill valve operation
  • 2Check if water is flowing over the overflow tube (fill valve not shutting off)
  • 3Perform a dye test — add food colouring to the tank and check if it appears in the bowl without flushing
  • 4Replace the flapper valve and/or fill valve — inexpensive parts available at any BC hardware store

Need Professional Help?

Don't let a small leak become a big problem. Contact LeakInspections.ca — a division of Anyleak.ca and Leak.ca — for expert diagnosis.