In much of Europe, a soap shower before swimming is a written rule, street shoes stop at the locker room, and some cities require a swim cap. In the U.S., CDC encourages pre-swim showers and many state codes require pools to post a sign saying so. The European rules exist for one reason: what swimmers carry into the water uses up chlorine and forms the irritants behind red eyes and pool smell.
Here is how the rules differ, what the research says about why they matter, and the habits every swimmer can follow on either side of the Atlantic.
Do you have to shower before swimming in Europe?
In many European public pools, yes, and the rule is written into the pool regulations. The City of Paris tells swimmers to take a soaped shower and walk through the footbath before entering the pool (City of Paris, 2019), and its facility regulation makes “passage sous la douche avec savonnage du corps” (a shower with the body soaped) a condition of entry (City of Paris facility rules).
Munich’s city pools state that “Vor der Benutzung der Becken muss eine Körperreinigung vorgenommen werden” (you must wash before using the pools) in house rules valid from October 15, 2026 (SWM Munich pools). In Bern, Switzerland, showering before using any pool, including children’s pools, is mandatory under the city’s pool regulation (City of Bern Sports Office).
Why do European pools ban street shoes on the pool deck?
Street shoes carry dirt and germs from outside onto wet floors where people walk barefoot, and that dirt can end up in the water. Paris pool rules say not to walk in shoes in the showers or on the pool deck (City of Paris, 2019). Munich bars street shoes from barefoot corridors, shower rooms and pool halls, and Bern treats pool surrounds as a barefoot zone reached only through foot basins.
Do you need a swim cap or a certain swimsuit in European pools?
Some cities require them. Paris requires a swimsuit and a swim cap in its city pools (people who are bald are exempt) and does not allow board shorts, boxer-style trunks or T-shirts in the water (City of Paris, 2019). Munich asks only for suitable swimwear, with no cap rule. Rules vary by city and even by pool, so check the posted rules before you go.
Do U.S. pools require a shower before swimming?
U.S. rules mostly tell pools to provide showers and post signs, rather than requiring each swimmer to shower. The CDC Model Aquatic Health Code (MAHC), a voluntary model that many states draw on, calls for cleansing showers with soap near the entrance and signs that tell swimmers to “SHOWER before entering the water” (CDC Mini-MAHC on hygiene, 2018 MAHC wording).
State codes set the actual rules. North Carolina requires public pools to post a sign “directing pool users to shower before entering the pool” (15A NCAC 18A .2526), and Wisconsin requires a sign telling swimmers to shower before entering and after using a steam room, sauna or toilet (Wis. Admin. Code ATCP 76.29).
| Pool or rule | Shower before swimming | Street shoes | Swimwear and caps |
|---|---|---|---|
| Paris city pools (City of Paris, 2019) | Required, with soap, plus a walk through the footbath | Not allowed in showers or on the pool deck | Swimsuit and swim cap required; no board shorts, boxer-style trunks or T-shirts |
| Munich city pools (SWM house rules, 2026) | Required before using the pools | Not allowed in barefoot corridors, showers or pool halls | Suitable swimwear; no cap rule |
| Bern city pools (city pool regulation) | Required, including children’s pools | Pool surrounds are a barefoot zone, entered through foot basins | Not covered in the regulation excerpt |
| U.S. public pools (MAHC model code and state codes) | Facilities provide showers and post signs; no direct rule that each swimmer showers | Set by each facility | Set by each facility |
Why does showering before swimming matter?
A short shower removes most of what swimmers carry in. CDC (2025) says “a one-minute shower removes most of the dirt, sweat, and oils on your body.” When chlorine reacts with pee, poop, sweat, dirt, skin cells, deodorant and makeup, it forms irritants called chloramines, which “decreases the amount of chlorine available to kill germs” (CDC, 2025). Chloramines are behind much of the eye sting and “chlorine” smell at indoor pools; our guide explains what chloramines are and how to reduce them.
Research backs the European approach:
- A 2012 Dutch study estimated that a bather releases about 217 mg of organic carbon in the first 60 seconds of showering and recommended pre-swim showers of “60 seconds or more” (Keuten et al., Water Research, 2012).
- A study of 30 Swiss indoor pools recommended public awareness campaigns to “ensure good public hygiene (showering before swimming)” as part of keeping airborne trichloramine low (Parrat et al., Annals of Occupational Hygiene, 2012).
- The World Health Organization’s pool guidelines say that where pool users shower before swimming, pool water is cleaner and easier to disinfect with smaller amounts of chemicals (WHO Guidelines for Safe Recreational Water Environments, Volume 2, 2006).
- The UK’s Pool Water Treatment Advisory Group says “pre-swim showering is good for water and air quality in any case, as it minimises combined chlorines” (PWTAG, 2025).
For pool staff, the stakes are higher: lifeguards breathe pool air for whole shifts. Our post on lifeguard lung and chloramine exposure in pool staff covers the research.
How many Americans skip pool hygiene?
Plenty, by their own account. In the 2025 Healthy Pools survey of 2,000 U.S. adults, run by Sachs Media for the Pool & Hot Tub Alliance, 53% admitted they had peed in a pool as an adult, 48% said they regularly use pools to rinse dirt or sand off their feet or sandals, and only 16% knew that contaminants weaken chlorine (Healthy Pools, 2025). For what pee does to pool water, see is peeing in the pool harmful?
What pool etiquette should every swimmer follow?
These habits match CDC’s 2025 healthy swimming steps and work at any pool, in the U.S. or Europe:
- Shower for at least one minute before getting in, and use the toilet first.
- Stay out of the water if you have diarrhea, and wait two weeks after diarrhea stops if it was caused by Crypto.
- Take kids on bathroom breaks every hour and change diapers away from the water.
- Leave street shoes in the locker room, and do not rinse sandy feet or sandals in the pool.
- Follow the posted rules on caps and swimwear, since they differ from pool to pool.
- For coaches: build a pre-practice shower into the routine, since swimmers follow what the coach enforces.
For more ways to keep a swim day safe, including drowning prevention, see how to practice safe and healthy swimming, and for Crypto in particular, see how to avoid Crypto in swimming pools.
Where does pool water treatment fit?
Showering lowers what swimmers bring into the water, but it never removes everything, so pools still rely on chlorine and good water treatment. Clear Comfort’s hydroxyl-based AOP is a supplemental system that works alongside a low chlorine residual to break down contaminants in the water. In Clear Comfort’s commercial case studies, facilities reduced chloramines and other disinfection by-products by 50% to 90% (results vary by facility), which is the same goal European shower rules aim at.
Frequently asked questions
Do you have to shower before swimming in Europe?
In many European public pools, yes. Paris requires a soaped shower and a walk through the footbath, Munich’s city pools require swimmers to wash before using the pools, and Bern makes showering mandatory before using any pool.
Why can’t you wear shoes on a European pool deck?
Street shoes bring outside dirt and germs onto wet floors where people walk barefoot, and that dirt can wash into the pool. Paris, Munich and Bern all keep street shoes off the pool deck.
Do you need a swim cap in Paris public pools?
Yes. The City of Paris requires a swimsuit and a swim cap in its pools, with people who are bald exempt, and does not allow board shorts or boxer-style trunks in the water.
How long should you shower before swimming?
CDC says a one-minute shower removes most of the dirt, sweat and oils on your body. A 2012 Dutch study of pre-swim showering also recommended showering for 60 seconds or more.
Does showering before swimming reduce chlorine smell and red eyes?
Yes, it helps. CDC says even a quick rinse shower removes much of the body waste that helps form chloramines, the irritants behind the “chlorine” smell and red eyes at many pools.
Run a public pool? See how Clear Comfort helps aquatic facilities keep air and water cleaner.
