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.
To pass the course and become a certified lifeguard, you must attend all the classes and perform all the skills correctly. Periodically, you will be required to take a written exam, and on the very last day you will perform a number of skills scenarios.nstructors should give you a general syllabus before you begin the class, but always bring your swimsuit, a towel, and a change of clothes to be prepared. During a lifeguard course you will learn to: 1  Identify and prevent common land-based emergencies. 2  Avoid distractions.