Right now, walk with me to the pool, deck to waterline. Let’s make this two-minute deck walk a habit with your child. First, read the depth markers. Spot slope “drop-offs.” Then match safe entries to your child’s ability.
Segnali di profondità: cosa indicano e perché sono importanti
Depth markers are permanent signs or tiles on the pool wall and deck that tell how deep the water is in feet and inches. You might assume the depth marker equals how deep the water is right up to the brim-but that’s often not true. The waterline is usually lower. For example, in above-ground pools, water is typically 4 to 6 inches below the top rail so skimmers work properly.
That means a marker that says “4 ft” may be over water that’s actually closer to 3 ft 6 in or 3 ft 10 in deep. Every pool area where the water is 5 feet deep or shallower must post “NO DIVING” warnings near depth markers on the deck. The markers should include the “No Diving” text or universal symbol. The reason: diving into shallow water leads to serious head, neck, and spinal injuries. The rule helps kids (and adults) clearly see where diving is prohibited.

Rispettare costantemente la segnaletica ufficiale
More than depth and signage, the official guidance says never dive in water that is 5 feet (1.5 meters) or less deep. That includes above-ground pools, regardless of their wall height.
First minute: Face each depth marker together. Say what it reads (“3 ft, 6 in”, “5 ft”). Check where the waterline actually is. Then move to where the slope begins. Spot the break in floor slope-where flat bottom becomes steeper, or safe shallow to deeper water.

Come gestire l’ingresso: passi sicuri per i bambini
Second minute: Ask your child what they think is safe. Can they walk in feet first there? Or sit at the edge and slide in by feet? Teach that whenever they’re not sure, always enter feet first. Full of confidence, not risk. You might also consider doing a structured swim training plan. For example, the 10-Week Plan at swimy.org helps kids build both confidence and skills in water.
If they can only stand comfortably with feet touching floor: entry by steps, ladder, or sitting at edge sliding in by feet. If they can swim and tread water well, and depth is more than 5 feet (1.5 m): feet-first jump or plunge may be safe-but only in pools specifically designed for diving or with oversight.

Errori comuni da evitare
One: trusting advertised depth markers without checking the actual water level. As mentioned, above-ground pools often have water several inches below the top. If a wall says “4 ft” but water is 6 inches down, you really have more like “3 ft 6 in” available. Two: assuming shallow-end markers guarantee safety for diving or large jumps. Even at 6 feet, diving from a deck may still be unsafe depending on the pool architecture and bottom slope. Three: ignoring “No Diving” markers thinking they don’t apply. These are there for a reason-they are enforceable in many state codes. Four: above-ground pools. They are never safe for diving.
Every swim day, make that two-minute walk standard. Read depth markers, spot slopes, check where waterline sits. Talk with your child about what’s safe-for example, “Here the pool says ‘5 ft’, but water is four-and-a-half-feet. That means no diving, only feet first here.” Reinforce feet-first entry. Make safety normal.

Riferimenti normativi e simbologia
CODE SNIPPETWashington Swimming Pool and Spa Code 2021 > Chapter 4 Public Swimming Pools > Section 409 Specific Safety Features > 409.3 No Diving SymbolGo To Full Code ChapterWhere the pool depth is 5 feet (1524 mm) or less, the "No Diving" symbol shall be displayed. The symbol shall be placed on the deck at intervals of not greater than 25 feet (7620 mm) and directly adjacent to a depth marker. Additional signage shall be in accordance with NEMA Z535.
Related Code Sections409.3 Public Swimming Pools, No Diving SymbolWhere the pool depth is 5 feet (1524 mm) or less, the "No Diving" symbol shall be displayed. The symbol shall be placed on the deck at intervals...

In addition, the guidance includes that above-ground pools are never safe for diving, regardless of wall height, and that proper signage and enforcement are essential for safety.

Conclusione operativa: routine quotidiana di sicurezza
Every swim day, make that two-minute walk standard. Read depth markers, spot slopes, check where waterline sits. Talk with your child about what’s safe-for example, “Here the pool says ‘5 ft’, but water is four-and-a-half-feet. That means no diving, only feet first here.” Reinforce feet-first entry. Make safety normal.