bottleneck-slow down or impede by creating an obstruction; His laziness has bottlenecked our efforts to reform the system. blockade, obstruct, stymie, stymy, embarrass, hinder, block-hinder or prevent the progress or accomplishment of; His brother blocked him at every turn.
Becoming a Lifeguard. Becoming a lifeguard does require an initial investment of time and money. Certification courses cost anywhere from $150 to $500, and take upwards of 30 hours to complete.
People who are taking this class at De Anza to get a lifeguard certification will have time to practice the prerequisite test as we will mostly concentrate on first aid and CPR at the start of the quarter. The full swim test will not be officially given until at least two weeks into the quarter.