Running toilet
Constant or intermittent running can come from the flapper, fill valve, float, chain, or their adjustment.
Toilet repair, organized by what you can see.
Use the symptom to start the conversation. The exact repair depends on the toilet, failed part, and location of the problem.
Leaking toilet base
Water where the toilet meets the floor may involve the seal, mounting connection, or another leak path.
Clogged or overflowing toilet
A plunger may clear some blockages, but repeated backups or a rising bowl call for care. Avoid repeated flushing.
Weak flush or no flush
The handle, chain, flapper, water level, rim flow, or trapway can affect flushing.