Why Water Matters More Than Ever in Mallorca
Mallorca remains one of the Mediterranean’s busiest yachting hubs, with world-class shipyards like STP and Astilleros de Mallorca, vibrant charter activity, and yachts wintering or refitting in Palma each season. But with that comes a unique set of water-related challenges: naturally hard water, long idle-periods over winter, high usage turnover, and seasonal recommissioning.
At Octo Marine, we support yachts across the island with precise, regulation-ready water treatment services. Whether you’re in the yard or gearing up for charter, this guide outlines what you need to know.
The Refit Season Advantage
Every year, hundreds of yachts haul out in Palma for maintenance, upgrades, or pre-season checks. With systems exposed and tanks opened, the refit period is the ideal moment to:
– Perform a full water disinfection treatment
– Replace filters, clean tanks, or update RO components
– Analyse water quality before the season begins
– Recommission systems post-winter storage
Octo Marine frequently works alongside other contractors at STP and Astilleros to schedule work efficiently around the vessel’s timeline.
Understanding Mallorca’s Water Profile
Mallorca’s municipal water supply relies heavily on desalination, particularly from reverse osmosis (RO) plants such as the facility in the Bay of Palma. This RO-treated water often contains elevated chloride levels, which can impact certain onboard sterilisation systems.
Standard silver ion systems,
for example, can be compromised by these chlorides, as the ions bind and reduce their disinfection effectiveness. However, Hydrasil — Octo Marine’s silver-stabilised hydrogen peroxide — is uniquely formulated to avoid this reaction, making it a reliable choice for yachts bunkering water in Mallorca.
Combined with the island’s naturally hard water, which contributes to scale in heaters, membranes, and pipes, these factors highlight the importance of choosing the right water treatment strategy — one that balances performance, protection, and long-term reliability.
Watermaker Service: Preparing for Season Start
If your RO unit has been inactive over the winter, recommissioning is key. Rather than relying on regular flushing, many vessels choose to store their systems with specialised chemicals. This keeps membranes fresh and protected, while saving time and water.
Before the first use of the season:
– Flush or replace pre-filters
– Test TDS output
– Inspect for scale or damage
– Restart using correct procedures
Octo Marine offers RO system servicing tailored to yachts wintering in Mallorca.
Water Analysis : Be Certain Before Guests Arrive
An onboard water supply can look and taste fine while still containing invisible risks. That’s why water analysis is standard procedure before the charter season or after technical work.
Our lab tests for:
– Legionella and other pathogens
– Conductivity and mineral content
– PH, chlorine levels, and more
We provide crew-friendly reports and support documentation for MLC or flag compliance.
Fresh Water Safety Plans : The Gold Standard in System Integrity
For yachts seeking total assurance, our Fresh Water Safety Plan (FWSP) offers a structured, certifiable approach to water hygiene.
What it includes:
– Full onboard system survey by a certified technician
– Creation of a tailored safety plan, equipment map, and logbook
– Crew training with certification
– Reminders for key maintenance tasks
– Annual audit and update
Mallorca is an ideal place to implement the plan. During yard time or longer stays, systems are accessible, and crew are available for training. A well-executed FWSP protects your vessel, passengers, and operational readiness year-round.
Octo Marine: Trusted by Yachts Across the Balearics
Octo Marine serves yachts throughout Mallorca with fast-response support and over 20 years of experience in Mediterranean water systems.
Our Palma-based technicians are available for:
– Emergency disinfection
– System upgrades
– Routine water testing
– Scheduled maintenance visits in Palma, Port Adriano, Alcúdia, and beyond.
All work is carried out with care for marina protocols, zero mess, and full coordination with yard timelines.
Ready to Start the Season with Confidence?
Book your treatment, service, or water analysis with Octo Marine today and make sure your yacht is clean, compliant, and ready to welcome guests.
📍 Explore our full Mallorca water treatment offering here: https://www.octomarine.com/water-treatment-yachts-mallorca/
