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.
The lifeguard test consists of a timed swim, a dive test (see next paragraph), and an interview. The swim test is 500m in the St. Francis Community Center indoor pool that must be completed in 10 minutes or less. 500m is approximately 550 yards, which is 11 laps, or 22 lengths of a standard 25 yard swimming pool.