Welcome to VizRivo

Your Trusted Irrigation Partner in Hawaii!
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Smart Irrigation Solutions for Hawaii's HOAs

Every community has unique irrigation challenges—aging systems, wiring issues, uneven coverage, or wasted water. VizRivo specializes in identifying and solving these problems with precision and long-term efficiency in mind.

The outcome: healthier landscapes, lower water bills, and irrigation systems that run smarter—not harder.

Click Here to Learn More about what VizRivo can do for Your HOA

palm trees and dead grass before VizRivo irrigation upgrade

Before VizRivo’s work, this community’s turf area suffered from uneven watering and wasted water due to an outdated control setup and mismatched sprinkler heads.

beautiful grassy area and tree after VizRivo irrigation upgrade

Following VizRivo’s redesign, the entrance turf now receives even, consistent water coverage with no dry patches—an immediate improvement in both appearance and efficiency.

old toro irrigation controller

Example of an outdated irrigation system. VizRivo reconfigured the system for balanced coverage, eliminating overwatering and dry areas while optimizing flow for consistent performance.

wire nick

During diagnostics, VizRivo discovered a corroded wire connection that was preventing proper voltage from reaching one of the irrigation valves—an issue that can cause entire zones to fail.

Client Testimonials

Here at Laule’a, we were faced with many challenges with our irrigation system and looking for a vendor who could evaluate our system and make the necessary upgrades to lower our water usage and give us the dependability needed to keep our landscape healthy. Ray started on property about 18 months ago and basically reworked our whole system. Our water usage has dropped by about 30%, which is saving us thousands of dollars annually and our landscape has never looked better. Also, our repair issues are minimal now which is also a significant savings for our association members. Ray is great to work with and very responsive. He is one of the best vendors I have ever worked with. Highly recommend!
native hibiscus flower
James Florio
Board Member at Laule’a
Working with Ray Keenan and VizRivo has been an absolute game-changer for our community. Our irrigation system was in rough shape—aging infrastructure, multiple mainline breaks, and inefficient controllers that wasted both water and money. Ray systematically identified and repaired major issues over several months, restoring our system’s reliability and performance. He installed five new smart controllers, organized internet access points to keep them connected, and trained our property manager on using the Centralis Hunter Irrigation software. Thanks to his clear explanations and ongoing support, I can now monitor and adjust irrigation schedules from my desk or my phone. Controlling the system is at my fingertips giving me the ability to check flow daily or as many times as I want to. Ray also added a crucial flow sensor that tracks water use by zone, helping us pinpoint waste and plan improvements strategically. His proactive approach, constant communication with our landscaping team and especially me, and dedication to long-term solutions have made all the difference. With Ray’s help, The Waikoloa Beach Villas has significantly reduced water waste and improved plant health across the property. I highly recommend VizRivo to any HOA looking to modernize their irrigation system and save both water and resources in the process.
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Teresa Hook
Property Manager, Waikoloa Beach Villas
Working with Ray Keenan and VizRivo has been an outstanding experience from start to finish. Ray identified the root of our irrigation challenges—low flow from county water—and designed an efficient solution that included a new pump installation and upgraded smart clock with cellular connectivity. He also retrofitted roughly 75% of our turf zones, reducing water use by an impressive 40% without sacrificing the health or appearance of our landscape. Throughout the entire process, Ray provided consistent communication and hands-on support for both our property team and landscapers. His deep knowledge, professionalism, and commitment to long-term results make VizRivo an invaluable partner. I highly recommend Ray to any HOA seeking to modernize their irrigation system and achieve measurable water savings.
sprinkler head
Michael Foreman
Board President, Kohala Waterfront HOA

Services

At VizRivo, I specialize in transforming outdated irrigation systems into efficient, water-saving solutions.

Irrigation Installs & Retrofits

From Waikoloa Village to Kukio, I’ve upgraded countless irrigation systems to ensure optimal performance and water conservation.

native hibiscus flower

Irrigation Repairs & Maintenance

Whether it’s fixing leaks or optimizing your system, I ensure your landscape stays healthy and green.

Ray teaching about trees

Consultation & Teaching

Need advice or training on your irrigation system? I’m here to share my expertise and help you make informed decisions.

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Smart Controller Integration

I’m versed in platforms like Rainbird IQ4, Hunter Hydrawise, and Weathertrak to bring advanced technology to your irrigation system.

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About VizRivo

With VizRivo, Ray brings that expertise to the communities where it matters most—Hawaii’s large HOAs. His passion lies in helping board members and property managers reduce operating costs, improve water efficiency, and protect the islands’ most valuable resource.

What VizRivo Delivers for HOAs:

  • Lower Costs: Reduced landscape water use, smaller water bills, and minimized damage to hardscapes.

  • Healthier Landscapes: Increased plant vitality, optimized water coverage, and irrigation designs that adapt as plants grow.

  • Smarter Systems: Clear property maps (valves, wires, mainlines) and smart controller installations for precision water management.

With VizRivo, every drop counts. Bringing sustainability, cost savings, and peace of mind to Hawaii’s communities.

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