Toilet running constantly from a worn flapper
Why it happens here
Alameda Corridor's water supply contains minerals that degrade rubber flappers faster than in softer-water areas. Combined with heavy use in commercial restrooms, flappers fail within a year or two, causing constant running.
Our approach
We replace the flapper with a chlorine-resistant Korky or Fluidmaster model, adjust the chain, and test the flush cycle. For commercial clients, we recommend annual flapper replacement as part of preventive maintenance.