Ultrasonic, Chemical-Free Algae Control for Every Water System

From potable water and stormwater to aquaculture, wastewater, and cooling towers. Hydro Synergy protects critical water assets with zero chemicals, zero downtime, and proven results. Trusted by councils, manufacturers, dairy farms, and marine operators across NZ & Australia.

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Who We Are?

Hydro Synergy is redefining how the world controls algae with smart, sustainable, ultrasonic solutions that protect water and the ecosystems that depend on it.

Headquartered in New Zealand and serving clients across NZ and Australia, Hydro Synergy provides ultrasonic algae control systems that are proven, low-maintenance, and 100% chemical-free. Our mission is simple: protect water, people, and infrastructure without sacrificing compliance or sustainability.

With deep expertise across industrial, municipal, agricultural, and environmental sectors, we help organizations shift from reactive treatments to long-term water quality solutions that work.

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Industries We Serve

Explore Your Industry. Solving Algae and Water Quality Challenges Across Every Industry. Without Chemicals or Downtime

Aquaculture

Ultrasound helps reduce algae, biofouling, and water quality issues in aquaculture sites

supporting stronger fish growth, less net cleaning, and improved yield without chemical inputs.

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Municipal Water Systems

Ultrasound supports councils in improving reservoir clarity, reducing algal risk, extending infrastructure life, and cutting chemical reliance in urban water assets.

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Environmental & Recreational

Ultrasound helps protect community lakes, wetlands, and recreational reserves from bloom outbreaks, sediment churn, and biodiversity decline without harmful side effects.

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Trusted by Communities in New Zealand and in Australia

Real-Life Testimonials

"We have 5 primary reservoirs… We obviously couldn’t cover all our surfaces, so we decided to deploy 2 of the units. Within the first month, we were seeing results. As a result of findings, we placed an order for 3 additional units for the remaining reservoirs. We are pleased with the results"

Darrin Sevitz

Assistant Supervisor

City of Lima Water Treatment Plant

Hydro Synergy Ultrasonic Solutions

(NEW REV) 10.23 SolaRaft iQDB Transparent.png

ARCS™

Resonance

• SolaRaft-QDB™ is buoyancy rated at 108kg.

• System and modules designed to IP67/68 protection.

• Generates and stores enough energy to power an ultrasonic algae control system when the sun goes down.

ADVANCED ULTRASONIC ALGAE CONTROL

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SolaRaft-QDB®

ARCS™

Resonance

An advanced version of the proven DB BLU technology, delivering industry-leading, chemical-free management of algae, biofilm, and biofouling.

Sonic Head Transducer

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Quattro DB Blu

Quattro-DB®

ARCS™

Resonance

Ultrasonic Algae, Biofilm and Biofouling Prevention Systems

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Quattro DB® ARCS emits thousands of ultrasonic frequencies in a 360°, linear, and line-of-sight pattern, managing:

• Up to 486,000 sqm for Blue-Green Algae

• Up to 71,000 sqm for Green Algae

• Up to 11,000 sqm for Biofilms & Diatoms

SPL ANALYZER

ARCS™

Resonance

Full color high-res
LCD display

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Advanced sound analyser with wide frequency range, real-time data, touch screen, Bluetooth, recording features, and rugged portability.

SunSonix

ARCS™

Resonance

Land Based
Solar Algae
Remediation
System

SunSonix Land Based Solar Array_ Front View_ Transparent.webp

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High-wattage solar panel with battery storage capacity that can power two HBS Mezzo DB Ultrasonic Algae Control Transducers.

Available on a 3-Year Limited Warranty.

Our Applications

Targeted Algae Control for Every Water Body from Lakes and Ponds to Wastewater and Drinking Supply

Salmon

Ultrasound improves visibility and oxygen balance in salmon pens by reducing algae and sludge. This supports fish health, lowers cleaning frequency, and helps achieve consistent yields.

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Finfish

Ultrasound enhances dissolved oxygen, improves water clarity, and reduces stress caused by algae and biofilm. This helps improve finfish health, growth rate, and site performance.

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Shellfish

Ultrasound enhances dissolved oxygen, improves water clarity, and reduces stress caused by algae and biofilm. This helps improve finfish health, growth rate, and site performance.

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Process
Water

Ultrasound enhances dissolved oxygen, improves water clarity, and reduces stress caused by algae and biofilm. This helps improve finfish health, growth rate, and site performance.

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Golf
Courses

Ultrasound prevents algae and sludge in irrigation ponds and decorative lakes. It protects turf health, reduces odour, and improves water quality without relying on harsh chemicals.

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Wastewater

Ultrasound reduces total suspended solids, accelerates sludge dewatering, controls cyanobacteria, and improves plant performance. This supports discharge compliance, reduces chemical use, and enhances water clarity across all treatment stages.

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Stormwater

Ultrasound treats stormwater ponds, basins, and swales by reducing nutrient recycling and controlling algae. It supports flood mitigation, improves clarity, and helps prevent downstream contamination.

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Drinking
Water

Ultrasound targets cyanobacteria, biofilm, and suspended solids before they reach the drinking water treatment plant. It improves taste, clarity, and system efficiency while lowering chemical and filter load.

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Dairy
Ponds

Ultrasound breaks down algae, stabilises dissolved oxygen, and reduces sludge buildup in dairy effluent ponds. This improves water clarity, controls odour, and helps you meet environmental compliance with less chemical use.

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Ponds

Ultrasound effectively treats nuisance algae and sediment in storage, runoff, and landscape ponds. It improves water clarity, protects pond aesthetics, and reduces cleaning and maintenance costs.

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Lakes

Ultrasound reduces toxic algal blooms, clears suspended solids, and supports oxygen balance. This helps improve water clarity, restore biodiversity, and reduce the need for chemical dosing.

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Marinas

Ultrasound controls algae and biofilm on pontoons, docks, and submerged structures. It reduces marine fouling, protects aquatic life, and maintains water quality in recreational and commercial ports.

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Don't Let Algae Compromise Your Water

Ready to transform your water quality management practices? Explore our technology and services to see how we can help you restore your water to its natural state.

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Trending News

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Browse Latest News

Hydro Synergy Ltd. CEO Ric Church presenting Lake Tewa field results at the 2025 Water NZ Conference, showing before-and-after cyanobacteria conditions during NZ ultrasonic algal management trials.

Key Insights from Ric Church at the 2025 Water NZ Conference

Key insights from Ric Church’s Water NZ Conference presentation, highlighting practical ultrasonic algal management results from Lake Tewa and MCAS deployments across New Zealand.

Aprille Amoroso

Nov 304 min read

Hydro Synergy Ltd. Project Director Alisdair Gribben presenting ultrasonic algae control technology at Aquaculture New Zealand Conference 2025 in Nelson.

The Power of Sound: How Hydro Synergy’s Ultrasonic Technology is Transforming Modern Aquaculture Operations

At the Aquaculture New Zealand Conference 2025, Hydro Synergy Ltd. showcased how ultrasonic innovation is transforming aquaculture operations. Proven in salmon and finfish farming, this technology offers a cleaner, chemical-free method to control algae, improve fish welfare, and advance sustainability across modern aquaculture environments.

Aprille Amoroso

Nov 84 min read

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Ultrasonic, Chemical-Free Algae Control for Every Water System

Who We Are?