What is an example of continuous or semicontinuous flow?

A sump pump is indeed an example of continuous or semicontinuous flow because it operates to remove water that accumulates in a basin or pit, such as in a basement or crawl space. The pump is designed to run as needed to maintain a specific water level, resulting in ongoing water flow. This characteristic defines continuous or semicontinuous flow, as the system is often engaged for extended periods or cycles depending on the water accumulation.

In contrast, other appliances or fixtures like washing machines, kitchen faucets, and toilet flushes typically provide intermittent flow. A washing machine has cycles of water intake and drainage rather than a constant flow, and a kitchen faucet, while it can run continually as long as the tap is open, usually serves specific tasks in short bursts. A toilet flush, on the other hand, is a brief event that leads to a quick discharge of water from the tank, rather than maintaining a flow over time.