What minimum height should depth markers be when placed on deck?

The minimum height for depth markers placed on the deck should be 4 inches. This height is significant because it allows the markers to be easily visible and readable to patrons at the pool. Depth markers are essential for pool safety, providing clear information about the water depth to help reduce risks of accidents and ensure that users can make informed decisions about entering the water.

Markers that are too low may not be easily noticed, leading to potential safety hazards as swimmers may misjudge the depths. A height of 4 inches strikes a balance between visibility and not obstructing the walking area around the pool, making it optimal for both safety and functionality. Inadequate heights such as 2 inches or less would likely not sufficiently alert users, while a height of 6 inches or more could be unnecessarily cumbersome in a deck space.