A toilet that uses a flushometer flushing system does not have a tank that needs to be refilled, bypassing refill problems. However, flushing problems can still arise with a flushometer.
Flushometer vs. Flush Valve
A traditional fill valve uses gravity to allow water from the toilet tank down into the bowl. A flushometer, however, is installed on a toilet or urinal to discharge a certain amount of water into the bowl.
A malfunctioning flushometer may not flush the toilet or urinal at all. Another problem that may arise is that the toilet flushes, but the flushometer delivers an insufficient amount of water into the bowl to create a full flush. The flushometer may also leak from the handle or vibrate when the toilet is flushed. Or, the flushometer may short flush, where it shuts off almost immediately. In another scenario, the flushometer may just keep flushing and fail to shut off, or shut off after a long period.
A flushometer that won't flush creates a sanitary problem when users leave the toilet with the contents left in the bowl, unflushed, often encountered by the next user. Also, a continuously flushing bowl may splash contents onto toilet users.