Introduction
Physical barriers prevent access. Rules prevent the rest — spinal injuries from diving into the shallow end, falls on the coping, adults drowning while swimming alone, collisions between people.
And rules only work if they meet three conditions: there must be few of them, they must be posted, and they must apply to adults too. A list of twenty rules is followed by nobody. Six clear rules, visible at the entrance, that adults respect in front of children — that works.
This article gives the minimum set of rules, explains the mechanism behind each one, and says what changes when the pool is in collective use.
The Six Essential Rules
| Rule | What it prevents |
|---|---|
| Never swim alone | Drowning with no witness, the most frequent cause among adults |
| No running on the coping | Falls and head injuries |
| No diving in the shallow end | Cervical spine injuries, the most serious and irreversible accident |
| No pushing anyone in or holding anyone under | Entering the water unprepared, panic, collisions |
| Alcohol and pools do not mix | Judgement, coordination and reflexes compromised |
| Toys out of the water at the end of the day | Draws children to the pool when nobody is present |
If you have to choose three, choose these: never swim alone, no diving in the shallow end, and no alcohol. They are the ones that prevent the irreversible accidents.
Each Rule and Its Mechanism
Never swim alone
It is the rule most broken by adults and the one that causes the most drownings among over-18s. A sudden faintness, a cramp, a loss of consciousness in the water — none of these requires poor swimming, and all of them are fatal with nobody present.
It applies to the owner taking a few lengths at the end of the afternoon as much as to a child. If you really are alone in the house, the minimum commitment is not to get in the water.
No running on the coping
Wet coping is slippery by definition, and the fall is onto stone or concrete. It is the source of most injuries in a domestic pool.
A simple, universal rule that adults have to follow first — if an adult runs to fetch a towel, the rule has ceased to exist.
No diving in the shallow end
This is the rule that prevents the most serious accident a pool can produce: a cervical spine injury, with permanent consequences.
A head-first dive requires enough depth and knowledge of the bottom. In domestic pools, with variable bottoms and limited depth, the practical rule is simple: you enter the water on foot or by the steps, except in an area expressly suitable and known to be so.
Marking the depth on the coping helps, but does not replace the rule — the marking states the depth, it does not say you may dive.
No pushing in or holding under
Pushing someone into the water means entering unprepared — without taking a breath, without knowing the depth, possibly backwards. Holding someone under as a joke, even briefly, causes panic and water inhalation.
It is worth putting this to children as a rule about other people, not as a ban on playing: you play in the water, you do not play with anyone's breathing.
Alcohol
Alcohol affects judgement, coordination, temperature perception and reaction time — all four relevant in water. It also increases the likelihood of the other rules being ignored.
And the most important point: whoever is supervising children does not drink. Supervision is a role, and a role with alcohol in it is not supervision.
Toys out of the water at the end of the day
A floating toy left in the pool is a reason for a child to come back to the water when nobody is looking. Taking everything out — toys, airbeds, balls — is part of closing the pool, as much as closing the gate.
Complementary Rules Worth Having
- Shower before getting in. It reduces the organic load the water has to treat, which reduces disinfectant use and the formation of irritant compounds. See Pool Water Irritating Your Eyes.
- Do not get in with open wounds or with a gastrointestinal illness. It protects the other users.
- Children in nappies only in proper swim nappies, changed away from the pool area.
- Long hair tied up, especially in pools with a main drain.
- Nobody sits on or leans against the suction grilles.
- No glass in the pool area. A broken glass in the water means draining it. Use plastic or metal.
- Do not swim during a thunderstorm. Out of the water at the first thunderclap, and wait.
💡 Dica Profissional
Post the rules at the entrance to the pool area, on a sun-resistant board, in large letters and at most eight lines. And add **112** at the end. Posting them does two things a conversation does not: it reminds visitors who do not know the rules, and it takes the host out of the uncomfortable role of repeating them to adults.
Where Rules Fit in the Whole
Rules are the behavioural layer. They do not replace the physical layers or supervision:
- Barriers prevent access when nobody is present. See Fences and Protection Barriers.
- Equipment and layers organise child protection. See Safe Pool for Children: Equipment.
- Rules reduce risk during use.
- First aid determines the outcome when something fails. See Pool First Aid.
A pool with excellent rules and no fence is still unprotected at three in the afternoon on a day when nobody is in the garden.
Equipment the Rules Presuppose
Rules can only be followed if the equipment exists and is accessible:
- A rescue pole with a hook, beside the pool, never stored away
- A ring buoy with a rope
- A first-aid kit, accessible and complete
- A charged phone in the pool area
- 112 posted, with the house address written underneath — in a panic, nobody remembers to give the address
- Enough lighting if the pool is used at dusk
Collective-Use Pools
In a condominium, holiday rental or hotel, the rules stop being a family agreement. They become information that has to be available to people arriving with no context — guests, visitors, other families' children.
In practice that means:
- Rules posted somewhere visible, in Portuguese and at least one foreign language
- Depths indicated
- Defined hours of use
- Rescue equipment visible and accessible
- Emergency contacts posted
Exactly which requirements apply and what must appear varies with the type of installation and with the municipality. Confirm with your câmara municipal and the local health authority what applies in your case, and ask for the answer in writing. See the condominium pages and the holiday-rental pages.
Common Mistakes
Too many rules. A list of twenty points is read by nobody. Six get followed.
Rules that only apply to children. Children copy adults. An adult who runs on the coping or dives into the shallow end has just cancelled the rule.
Posting nothing. Rules that exist only in the owner's head never reach visitors, who are precisely the people who do not know the pool.
Alcohol while supervising. It is the mistake that turns a safe pool into a pool with no effective supervision.
Relying on rules without barriers. Rules work during use; the greater risk is outside it.
Glasses on the coping. A broken glass in the pool means draining it. Quite apart from the direct risk.
Not having the address written next to 112. It looks like a detail and is not: in an emergency, time lost explaining where you are counts.
Frequently Asked Questions
How many rules should I post?
Six to eight, in large letters, plus 112 and the address. Beyond that, people stop reading.
Do the rules apply to adults?
Above all to adults. "Never swim alone" and "no alcohol" are rules whose breach by adults causes most adult drownings — and the adults' example determines what children do.
Where do I post the rules?
At the entrance to the pool area, at the point everyone passes, on a board resistant to sun and water. If there is a fence, on or beside the gate.
Which matters more: rules or a fence?
The fence. Rules reduce risk during use; the fence protects during the hours the pool is not being used, which are the majority and where most accidents with children occur.
Can I let teenagers use the pool on their own?
The never-swim-alone rule has no exception for age. Two teenagers together, with a phone to hand and the rules known, is a different situation from one teenager alone.
And in a thunderstorm?
Out of the water at the first thunderclap, and do not go back while the storm is in the area. A pool is a large surface of water with an electrical installation attached.
Conclusion
Pool rules are not a regulation: they are six sentences that prevent the accidents barriers cannot prevent.
Key points to remember:
- Never swim alone — the rule most broken by adults and the one that causes most drownings among them.
- No diving in the shallow end — it prevents the irreversible injury.
- Whoever supervises does not drink. Supervision is a role.
- Six to eight rules posted, with 112 and the address underneath.
- The rules apply to adults first; children copy what they see.
- Toys out of the water at the end of the day, as much as closing the gate.
If you want to check your pool's safety and usage conditions, the on-site technical diagnosis covers access points, suction grilles, the state of the coping and water quality, with a written report. It costs €45, deductible from your first month under contract.
