Hooks The life hook is a pole with a large metal hook on the end. It is also known as the Shepherd's crook. It is required to be mounted near the pool or spa to help someone out of the water, if needed. The pole is 6 to 9 feet long with a broad, looped hook on the end. This helps to draw in an unconscious victim floating on or below the surface.
Some commercial pools require an in-water thermometer be available at each pool and spa.
You can simply tie a thermometer to a rail or ladder, or there are tube models with a float on the top that float on the surface of the water. But a unit that is built into the skimmer cover and takes the temperature at the skimmer, is better where they are out of sight and are not tampered. You and the health department inspector need to check the thermometer for correct temperature of the water.