Wishlist Add your hotel

Office Address

paris

Phone Number

123-343-4444

Email Address

team@siestify.com

By Gildas O 27 Sep, 2026

ONOMO Casablanca Pool: Our In-Depth Look at Water Quality and Hygiene

blog

The Question Every Traveller Asks Before Taking a Dip

The scene is perfect. The Casablanca sun warms the loungers, and the pool glitters with an irresistible blue shimmer. The urge to dive in is immediate, especially after a long flight or before catching another from the nearby Mohammed V Airport. Yet, a small voice of doubt often remains. Is this water truly clean? For parents with young children, people with sensitive skin, or simply discerning travellers, this question isn't a minor detail—it's a prerequisite. Hygiene comes first. Faced with this legitimate concern, which is rarely addressed with full transparency, we decided to investigate. We went behind the scenes and into the technical rooms of the ONOMO Airport Casablanca to understand, in concrete terms, what guarantees the quality of your swim.

Beyond the Blue: The Science of Healthy Pool Water

Clear, healthy pool water depends on a strict chemical and mechanical balance—an inseparable trio of neutral pH, an effective disinfectant level, and constant filtration. Contrary to popular belief, a strong "chlorine" smell is not a sign of cleanliness. In fact, it's a symptom of chloramines, compounds formed when chlorine reacts with organic matter like sweat and dead skin cells. These are the real culprits behind eye and skin irritation. A perfectly balanced pool, on the other hand, is virtually odourless.

The key is the pH level, ideally maintained between 7.2 and 7.4. If it's too low, the water becomes acidic and aggressive; too high, and the chlorine loses its disinfecting power. Finally, filtration, handled by powerful pumps and sand filters, continuously removes physical impurities. These principles are governed by health standards, but the best establishments go above and beyond.

Under the Microscope: Our Audit of the ONOMO Casablanca Pool

ONOMO Airport Casablanca doesn't just meet the standards; it has implemented a monitoring protocol that exceeds minimum requirements to ensure impeccable water quality. Our investigation allowed us to verify several key points:

  • Frequent Manual Testing: The technical teams perform manual checks of the pH and free chlorine levels at least three times a day (morning, noon, and late afternoon). The results are meticulously recorded in an accessible sanitary logbook.
  • Automated Backup: This manual monitoring is supplemented by an automated system of probes that analyse the water continuously. This system adjusts the injection of corrective products in real-time, ensuring perfect water stability even during periods of high use.
  • Powerful Filtration: The well-sized sand filtration system runs for many hours each day, ensuring the entire volume of the pool is circulated and cleaned several times over.

This commitment to excellence provides the peace of mind that makes the idea of enjoying this clean oasis so appealing. It transforms a simple dip into a truly relaxing experience, especially when you have a private retreat for a few hours to rest afterwards, like a Standard room at the hotel.

Standard

A Shared Standard of Excellence: From Casablanca to Abidjan

The commitment to impeccable hygiene isn't an isolated initiative in Casablanca. It's a quality policy applied across the ONOMO group, particularly in its hotels strategically located near airports. The ONOMO Hotel Abidjan Airport, serving Félix-Houphouët-Boigny Airport, applies the same rigorous protocols. For the business traveller in transit between these two economic capitals or the tourist exploring West Africa, this ensures a consistent standard of trust. Whether your layover is in Morocco or Côte d'Ivoire, the promise is the same: a haven of peace and cleanliness. It's the guarantee of being able to relax with complete serenity by booking an Onomo Standard room in Abidjan or treating yourself to the comfort of a more spacious Onomo Supérieure room before your next flight.

Onomo Supérieure
Onomo Standard

Day Pass vs. Day Room: The Ultimate Hygiene & Comfort Upgrade

For what is often a small additional cost, booking a day-use room through Siestify offers incomparable added value compared to a simple pool access pass. Hygiene and comfort don't stop at the water's edge. The real luxury is having a completely private space. The choice between a crowded public beach and a private pool becomes much clearer when you consider the benefits of a personal base.

Here’s a breakdown of what you get with a day room:

  • Private Shower: The ability to shower in your own clean, private bathroom before and after your swim is a major hygiene advantage over crowded communal showers.
  • Private Toilets: No need to use public facilities. You have your own pristine toilet in your room.
  • Secure Storage: Your valuables, shopping bags, and travel documents are safely locked in your room, not in a questionable locker.
  • A Place to Rest: A comfortable bed for a restorative nap is a luxury a simple pool pass can never offer.
  • Total Privacy: You have a quiet, personal space to change, relax, and unwind away from the poolside buzz.

This transforms a quick swim into a full day of restorative relaxation, a strategy that savvy travellers are increasingly adopting. For more insights on accessing hotel pools, our no-membership guide is a must-read.

Frequently Asked Questions

Is the pool safe for young children?
Yes, the water quality is rigorously controlled to be safe for everyone, including the youngest swimmers. The pH and chlorine levels are carefully balanced to prevent skin and eye irritation, making it a reassuring choice for families.

Is there a strong chlorine smell around the pool?
No, and that's a sign of healthy water. A strong "chlorine" smell actually comes from chloramines, which form when chlorine reacts with impurities. Well-treated and balanced water, like that at ONOMO, has a very neutral scent.

Are the pool surroundings (sunbeds, floors) also cleaned?
Absolutely. ONOMO's hygiene protocols include daily cleaning and disinfection of the pool decks, sun loungers, showers, and footbaths to ensure a comprehensively clean environment.

Who checks the water quality and how often?
The water quality is checked multiple times a day by the hotel's technical teams. Manual tests are conducted in the morning, at midday, and in the evening, supplemented by automatic probes that adjust the levels in real-time. A sanitary logbook records all these readings.

Can I just come for the pool without booking a room?
While some hotels may offer a day pass, booking a room for a few hours is often a much better value. As detailed in our guide on whether you can just walk in for a swim, a day room guarantees access and provides a private shower, a secure place for your belongings, and a bed to rest, turning a simple swim into a true daycation.