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.
Pool lifeguards earn between Â£11,000 and Â£20,000 per annum, or work on an hourly rate of Â£5 - Â£10 per hour, depending on the place they are working. It is common for lifeguards to increase their income by taking additional qualifications as swimming coach, personal trainer, fitness coach etc.