Here are two recommendations: Get a sprinkler timer and attach it to your hose bib. When you need to add water, set it for 1-1.5 hours and it will turn off automatically. Don’t put the end of the hose in the pool. Set the end of the hose just over the edge of the coping so you see the water arching into the pool. This way it is clear when the water is or is not running.
