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.
Many people have asked about how long a certain certification lasts for. The two main providers, the Red Cross and the Lifesaving Society, have some different courses with different certificates. Standard First Aid and Emergency First Aid are valid for two years under the Lifesaving Society and three years under the Red Cross. CPR courses are valid for three years by the Red Cross and two years by the Lifesaving Society. However, annual recertification is recommended by both providers. The Lifesaving Society offers two AED courses, AED responder and AED provider, both of which are valid for two years.