The term "water running" can have different meanings depending on the context in which it is used.
1) In a general sense, "water running" refers to water flowing or being in motion, such as when someone turns on their faucet and water starts coming out.
2) Another meaning of "water running" could refer to a stream or river where water is constantly moving.
3) The phrase can also be used figuratively to describe an activity that is continuously happening, for example: "The business has been running smoothly since they hired the new manager." In this context, "running" means operating efficiently and effectively.