What is a common indicator of poor water circulation in a swimming pool?

Murky water is a common indicator of poor water circulation in a swimming pool due to several factors. When water circulation is inefficient, debris, bacteria, and contaminants do not get adequately filtered out, leading to a build-up that clouds the water. Proper circulation is essential for maintaining water clarity because it helps to distribute chemicals evenly throughout the pool, allowing disinfectants to effectively kill bacteria and other pathogens.

In contrast, a low bather load typically means fewer contaminants are introduced into the water, which wouldn't contribute to murkiness. Perfect water clarity would indicate healthy circulation and filtration processes are working effectively. Similarly, when all chemicals are within the recommended range, it suggests that the pool's chemical balance is being maintained properly, which is also a sign of good circulation. Therefore, murky water stands out as the primary indicator of inadequate circulation, highlighting the need for attention to the filtration system and water movement within the pool.