Toto Carlyle II, one of four installed 4 years ago now won't flush completely even when flush lever is held down. The other three work fine.
Dump a 1.25 gallon bucket of water in the bowl and I get a complete flush.
Problem would seem to be that the flush valve delivers less than enough water,
or flush valve delivers water too slowly,
or something in the water ducts through which the flush water flows from valve to bowl restricts water flow velocity,
or ???
Before I buy and install a $40 replacement flush valve, I'd like advice on what is causing the problem.
Dump a 1.25 gallon bucket of water in the bowl and I get a complete flush.
Problem would seem to be that the flush valve delivers less than enough water,
or flush valve delivers water too slowly,
or something in the water ducts through which the flush water flows from valve to bowl restricts water flow velocity,
or ???
Before I buy and install a $40 replacement flush valve, I'd like advice on what is causing the problem.