Are you doing this?
During a routine maintenance call at a commercial pool the service tech removed the skimmer lid, emptied the leaf basket and left both the lid and basket on the pool deck. He then passed the vac hose through the weir throat of the skimmer and proceeded to vacuum the pool. Within five minutes a man was injured when he stepped into the open skimmer.
My question: Why didn’t the pool tech replace the skimmer lid before vacuuming the pool?