Large-volume flush: When the water heater tank’s flush level is set too high, causing the toilet to flush double its load.
Partial flush: When the water flush pressure is too weak to confidently clear waste in the toilet bowl.
Toilet Bowl Choke: When water and waste is not flushed immediately, and it takes a while to be drained.
Slow Tank Refill: When the water tank sounds like it is continuously running because it is slow to refill.
Toilet Bowl Leak: This could occur from the toilet base, or from the toilet tank leaking into the bowl.