Toilet running constantly from a worn flapper
Why it happens here
Pantera's hard water leaves mineral deposits on the flapper, so it stops sealing against the flush valve seat. The toilet runs between flushes, sometimes for weeks before anyone notices. It's the single most common call we get here.
Our approach
We replace the flapper with a mineral-resistant model, check the chain tension, and confirm the seal holds. If the valve seat is scaled, we clean or replace it. Most jobs finish in under an hour for $150 to $220.