Overcrowded Class and a Weak Swimmer in Deep Water
You arrive to teach a deep-water interval class expecting 12 but 22 participants show up because a lane-swim group was cancelled. The pool's deep end is 2.4 m; the shallow end is 1.0 m. You have one lifeguard on duty, and your facility's ratio guideline is 1 instructor per 15 in deep water. One participant, a man in his 40s, tells you he is 'not a strong swimmer' but 'can tread for a bit.' He has no flotation belt. You have 10 belts for 22 people. The class is due to start in 5 minutes and the aquatics manager is off-site.
1. What are your options, and which do you choose? Walk through the trade-offs.
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Options: (a) run as planned in deep water - unacceptable, ratio and equipment both fail and a weak swimmer without flotation in 2.4 m is a foreseeable drowning risk; (b) cancel - safe but poor service and avoidable; (c) split and relocate. Choose (c): move the class to the shallow end (1.0 m) where non-swimmers can stand, and/or cap deep-water participation at the number of belts plus the ratio limit. Confirm with the lifeguard that they can cover the shallow class and the pool. Notify the manager after class. The controlling principle is that ratio and flotation are safety floors, not preferences.
2. How do you handle the weak swimmer specifically, and what do you tell the group?
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Place him in the shallow end where he can stand, give him a belt if one is available there, and keep him in your sightline. Offer a supported shallow-water version of the workout. Tell the group plainly and without blame: 'We're moving to the shallow end today because of numbers and equipment; here's how the class will run.' Do not single him out as the reason. If he insists on deep water, he must have flotation and demonstrate comfort; otherwise he stays shallow.
3. What must be documented, and what systemic issue should you raise?
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Document the attendance (22), the ratio deviation and how it was resolved, equipment shortfall, and the relocation. Report to the aquatics manager: the booking/cancellation process that allowed an unplanned surge, the belt inventory versus expected class size, and the need for a written over-capacity procedure so the decision isn't left to an instructor with no backup. Recommend a pre-class headcount and a standing rule for splitting or capping.