How a Spanish golf course overcame salt concentration in reclaimed water to achieve healthier turf and simplified maintenance.
High Salinity with Reclaimed Water
La Serena Golf, a championship course in Murcia near the Mar Menor, faced a critical water quality challenge that was severely impacting turf health and maintenance operations. The course relies on reclaimed water from the Los Alcázares municipal wastewater treatment plant containing a salt concentration of 7 grams per liter—a level that made consistent turf quality extremely difficult to maintain.
“We decided to install AQUA4D® due to the salt problems we had in our irrigation water, which made turf maintenance very difficult,” explains Miguel Moreno, Head Greenkeeper at La Serena Golf. “Thanks to the technology and ongoing technical support, irrigation management is now much simpler and the results are evident.”
The implementation of AQUA4D® physical water treatment technology has marked a turning point in how the course manages irrigation water quality and turf health. Working closely with Riversa, AQUA4D®’s Spanish distributor, La Serena’s maintenance team developed best management practices that have transformed their ability to work with high-salinity reclaimed water.
Measurable Improvements in Turf Health and Performance
The results of AQUA4D® treatment have been both visible and quantifiable across multiple aspects of turf management.
Visual improvements to turf quality are immediately apparent. The turf now displays better turgidity, improved color, and greater overall vigor compared to pre-treatment conditions. These changes represent fundamental improvements in plant health rather than cosmetic differences. Moreno also reports that the entire maintenance team has observed that with AQUA4D®, “the turf is able to absorb nutrients much more effectively.” This enhanced nutrient uptake efficiency means fertilizer applications deliver better results, supporting both turf quality and resource efficiency. Conductivity levels now remain stable and controlled, translating into improved soil conditions and reduced salinity stress on the turf. This stability is critical for maintaining consistent playing conditions throughout the season.
“We’re seeing a very drastic change,” Moreno emphasizes. “AQUA4D® allows us to irrigate with shorter cycles and less depth, which helps us maintain better moisture levels in the root zone.”
This ability to achieve better results with less water represents a significant operational improvement, particularly valuable in Spain’s water-stressed Mediterranean climate.
How AQUA4D® Technology Works
AQUA4D® is a physical water treatment technology developed through 20 years of research and development. The system modifies water’s physical properties to improve its behavior in soil and plant systems.
The technology works by applying precisely calibrated resonance fields that temporarily influence how solubilized minerals behave in water—without chemicals, additives, or changes to the water’s chemical composition. This physical treatment approach delivers multiple benefits:
- + water penetration into soil profiles
- + distribution of moisture in the root zone
- + calcium carbonate balance in water and soil
- + root development for healthier, more resilient turf
- + optimized nutrient delivery to plant root systems
This chemical-free approach is particularly valuable for golf courses using reclaimed water or other alternative irrigation sources, where water quality can vary and traditional chemical treatment may not be practical or desirable.
Strong Partnership and Long-term Benefits
The relationship between AQUA4D®, Riversa, and La Serena Golf has been essential to the project’s success. From initial planning and installation through ongoing system monitoring and agronomic support, Riversa has provided responsive, expert service.
“The service has been very personal and impeccable,” Moreno notes. “They’ve always responded to our needs quickly and effectively.”
This collaborative approach—combining proven technology with local expertise and ongoing support—has not only facilitated successful implementation but has also built confidence in advanced water treatment solutions for sports turf management.
The transformation at La Serena demonstrates how physical water treatment technology can address complex water quality challenges. The course has experienced comprehensive improvements:
- • Turf Quality: Better color, turgidity, and overall plant vigor create improved playing conditions and visual appeal.
- • Nutrient Management: Enhanced absorption efficiency means fertilizer programs deliver better results with optimized application rates.
- • Salinity Control: Stable, managed conductivity levels reduce salt stress and protect long-term soil health.
- • Water Efficiency: Shorter, shallower irrigation cycles achieve better moisture retention, reducing overall water consumption.
- • Operational Simplification: More predictable turf response and reduced salinity-related complications streamline day-to-day maintenance.
A Model for Mediterranean Golf Course Management
La Serena Golf’s experience with AQUA4D® represents an important case study for golf courses throughout Spain and the broader Mediterranean region. As water resources face increasing constraints and courses rely more heavily on reclaimed or alternative water sources, effective water treatment technologies become essential management tools.
The success at La Serena demonstrates that even challenging water quality issues—like 7 grams per liter salt concentration—can be successfully managed with the right technology and expert support. This delivers not only better playing conditions but also more efficient resource use and improved long-term sustainability for golf operations.
For courses facing similar salinity challenges, the La Serena example shows that advanced water treatment can transform irrigation water quality from a limiting factor into a managed variable, supporting both agronomic performance and operational efficiency.
Video: How does AQUA4D simultaneously achieve water savings and manage salinity?
La Serena Golf’s irrigation water from the Los Alcázares wastewater treatment plant contains 7 grams of salt per liter, a concentration that severely impacted turf quality before AQUA4D® installation.
AQUA4D® physical water treatment modifies water’s behavior to improve soil penetration, optimize nutrient delivery, and help manage salt levels. This results in better turf quality, enhanced nutrient absorption, and more efficient irrigation.
The course achieved improved turf color and vigor, enhanced nutrient absorption, controlled conductivity levels, and more efficient irrigation with shorter cycles and better moisture retention.
Yes, AQUA4D® uses physical water treatment with resonance fields—no chemicals, additives, or consumables are required, and the water’s chemical composition is not altered.
AQUA4D® technology for sports and landscapes is distributed in Spain by Riversa, which provides installation, support, and ongoing technical assistance for golf courses and other applications.
Yes, AQUA4D® is particularly effective with reclaimed or alternative water sources. The technology helps golf courses successfully manage water quality challenges that would otherwise limit turf performance.
About AQUA4D®
AQUA4D® is a Swiss-based water technology company with over 20 years of experience in physical water treatment. The company’s solutions are used in precision irrigation, turf management, buildings, and industrial applications across more than 40 countries worldwide. AQUA4D® technology helps users achieve water efficiency, manage salinity, prevent clogging, and optimize nutrient delivery—all without chemicals.
In Spain, AQUA4D® technology is distributed by Riversa.
About Riversa
Riversa is Spain’s leading distributor of professional turf and landscape management equipment and solutions, representing premium brands and innovative technologies for golf courses, sports facilities, and municipal green spaces throughout Spain and Portugal.
Spain
Turf Irrigation Management
Water Savings
Salinity Management
Summary: La Serena Golf Club near Spain’s Mar Menor successfully addressed severe irrigation water salinity (7 grams per liter) using AQUA4D® physical water treatment technology, achieving improved turf quality, enhanced nutrient absorption, controlled conductivity levels, and more efficient irrigation management.
“When it comes to salt management, we’ve seen a dramatic change: it allows for shorter, shallower irrigation cycles, retains more moisture, and keeps conductivity levels from rising. It makes day-to-day management much easier and is a huge help.” – Miguel Moreno
Interview with Miguel Moreno, Golf Course Superintendent.