What is the best method for determining the depth of water in a clearwell?

The best method for determining the depth of water in a clearwell is the bubbler system. This method works by using a submerged tube with a constant air supply. The air pressure is varied until it reaches a point where it overcomes the water column above the tube. The pressure required to reach this point is directly related to the water depth.

One of the primary advantages of using a bubbler system is its reliability in different water quality conditions since it is not affected by factors like turbidity or the presence of foam on the water surface. It can provide continuous measurements and is relatively low-maintenance compared to other methods.

While other methods like ultrasonic sensors and pressure transducers are also capable of measuring water depth, they can be influenced by the water's characteristics, such as temperature and changes in density. Float switches can also be used for level detection, but they typically only provide point measurements and may require more frequent maintenance. Therefore, utilizing a bubbler system offers a more consistent and effective solution for accurately measuring water depth in a clearwell.