The Sprinkler Nerd Show

Today's irrigation contractor does far more than install sprinklers.

Modern irrigation companies are managing water, integrating technology, and running sophisticated service businesses that combine field expertise with connected systems and data.

In this second episode of the Rain Bird Irrigation Pro Summit series, Andy Humphrey speaks with several contractors working in the field today about how the role of the irrigation contractor is evolving.

Steve from Quench Irrigation discusses water management, smart controllers, and the growing role of sensors and connected technology.

Travis and Andy Childs share practical insights from decades of experience installing and troubleshooting irrigation systems.

And Alex from Morgans Irrigation talks about how modern irrigation businesses are using automation, CRM systems, and new service models to improve customer communication and operations.

Together, these conversations paint a picture of the modern irrigation contractor — a combination of technician, water manager, and technology operator.

In This Episode

• Smart controllers and cloud-connected irrigation systems
• Water monitoring and irrigation management
• Two-wire troubleshooting and electrical diagnostics
• Training technicians and improving system reliability
• Using CRM systems and automation in irrigation businesses

Featured Guests

Steve Pereira — Quench Irrigation Travis Childs — Morgans Irrigation Andy Childs — Landscape Maintenance Services

Danielle and Denise - Landscape Maintenance Services Alex Morgans — Morgans Irrigation

In the first episode of this three-part series from the Rain Bird Irrigation Pro Summit, Andy Humphrey sits down with Walter Mugivan, owner of Aqua Mist Irrigation, who has more than 50 years of experience in the irrigation industry.

Walter installed his first irrigation system in 1968 — digging trenches by hand and working with early hydraulic valves long before modern irrigation technology existed.

In this conversation, Walter shares how the industry has evolved over the decades, from early sprinkler systems to today's advanced controllers, flow management systems, and large-scale pump stations.

He also shares advice for contractors entering the industry and explains why understanding the fundamentals of hydraulics and system design still matters today.

This episode is a reminder that irrigation innovation didn't happen overnight — it was built through decades of learning, experimentation, and improvement.

In This Episode

• What irrigation systems looked like in the late 1960s
• The evolution of controllers and sprinkler technology
• Pump stations and stormwater irrigation systems
• The importance of hydraulics in irrigation design
• Lessons from more than 50 years in the industry

Featured Guest

Walter Mugavin Owner, Aqua Mist Irrigation

In this episode of The Sprinkler Nerd Show, Andy Humphrey sits down with Justin Wilson, founder of American Irrigation in Georgetown, Texas. With nearly three decades in the irrigation service business, Justin shares how he built a company that now runs 17+ service trucks and completes thousands of irrigation jobs each year.

Justin explains why "the service business is the people business," emphasizing that successful companies must care for both their customers and their team members. The conversation dives into practical lessons from the field—how quality inspections and training help maintain standards across a large team, why many irrigation problems come down to simple issues like poorly installed sprinkler heads, and how contractors can build long-term customer trust.

Andy and Justin also explore the future of irrigation, including smart controllers, the challenges of managing thousands of different systems, and the growing pressure on water resources. Justin argues that contractors will need to shift toward more efficient irrigation methods, better system design, and prioritizing which landscapes truly need water.

The episode wraps with advice for contractors: stop searching for the "perfect technician" and instead invest in training the next generation of irrigation professionals.

TXT Andy and say what's up? 208 908 3229

--

Intro audio source: America, "You Can Do Magic"

Reference Link: https://player.captivate.fm/episode/ec981d8c-cd1d-4c13-961a-76cf9cf32ecb

For immediate release—breaking news, kind of.

In this solo episode of The Sprinkler Nerd Show, Andy dives into what seems like a revolutionary product: a mechanical rain sensor that requires no batteries, no Wi-Fi, no firmware updates—just pure, functional design. It shuts off irrigation during rainfall and turns it back on when conditions dry out, all thanks to hygroscopic discs that expand and contract to trigger a simple switch.

This device sounds like the newest drop in water-saving technology—until Andy reveals the twist: it's not new at all. In fact, it's based on US Patent 3,808,385, filed in 1972 and granted in 1974. That's over 50 years ago. And the core concept of the mechanical rain sensor hasn't changed since.

Andy breaks down how the device works, why it's still effective today, and what it says about the pace of innovation in the irrigation industry. He challenges contractors and tech developers alike to ask the big question: why are we still using 1970s technology in 2025?

Could we create a smarter, data-driven rain sensor that actually logs rainfall events, provides historical context, and informs better irrigation decisions? If so—why hasn't anyone built it yet?

Key Highlights:

• Breakdown of how the moisture-responsive switch actuator works

• Benefits for contractors: simplicity, reliability, zero maintenance

• Installation and adjustment tips

• Why the current state of rain sensors is a wake-up call

• A challenge to the industry: let's rethink how we track rain and respond to it

Andy closes the episode with a call to action for all Sprinkler Nerds: always ask why. Why things work the way they do, why they've stayed the same—and how we can make them better.

https://youtube.com/shorts/flpTuNN7vqY

In this episode of the Sprinkler Nerd Show, host Andy Humphrey sits down with Steve Barendt from Rain Bird to explore the company's new ESP 2-Wire Controller—a product that's making 2-wire irrigation systems significantly more approachable for contractors who may have previously avoided them due to complexity.

Andy first encountered Steve at the IA Show, where Steve delivered an impromptu 2-minute elevator pitch on the new controller. That pitch sparked Andy's interest in Rain Bird's new approach to two-wire systems, leading to this deeper dive discussion.

Steve brings a decade of experience at Rain Bird, including seven years on the sales team working directly with contractors in the Austin, Texas area. His background in the field informs his work as a product manager, enabling him to better understand real-world customer needs and challenges.

Historically, two-wire systems have been considered complex, especially around wiring specifications, connector types, and troubleshooting. Rain Bird's ESP Two-Wire Controller aims to lower the barrier to entry, making it easier for contractors—even those new to two-wire installations—to adopt the technology.

The term "approachable two-wire" is intentional. Steve explains that Rain Bird designed this controller to work with standard irrigation wire and connectors, rather than requiring specialized components. As long as the wire is direct burial irrigation wire (down to 18 gauge) and connectors are rated for 600 volts, users can leverage what's already on their trucks—reducing the learning curve and installation costs.

A key innovation is that the two-wire path is not constantly energized, as it is in traditional two-wire systems. Instead, it's only powered when actively running a station or performing diagnostics. This reduces heat at the connectors and decreases corrosion risks, allowing the use of standard connectors and simplifying troubleshooting.

The ESP Two-Wire Controller isn't designed to replace all two-wire systems. Instead, it's aimed at light commercial and large residential projects with about 12 to 30 stations—an area where contractors often debate between traditional wiring and larger two-wire systems.

Key highlights:

• 50-station capacity (though ideal use is around 12–30 stations)

• Cost break-even point starts around 12 stations, lower than the 30+ typical for traditional two-wire setups

• Two solenoids can operate simultaneously

• Compatible with a standard flow sensor (hardwired)

By offering a lower break-even point and simpler installation, this controller fills a gap between traditional modular controllers like the ESP ME3 and higher-end commercial platforms like LX IVM.

Rain Bird has invested heavily in diagnostics features that make this controller easier to troubleshoot:

• LED Feedback on Decoders: Each decoder includes red, green, and blue LEDs that indicate operational status, short circuits, and open circuits.

• Short Finding Mode: Allows energizing the path for diagnostics with a clamp meter.

• Power-Measure Mode: Helps track power issues in the field.

These features empower contractors to isolate and resolve issues faster without needing advanced tools or specialized knowledge.

Perhaps the most contractor-friendly feature is the auto-address functionality. Rain Bird decoders come in numbered order, and if installed sequentially, the controller will auto-scan and assign decoder addresses to stations with no manual input. This drastically reduces setup time and minimizes human error.

While other systems may require manual address entry or use specialized software, Rain Bird's solution is faster and simpler—especially when paired with the mobile app.

Another simplification: unlike other two-wire systems, no field grounding is required for this controller. Though contractors can choose to ground the system if they wish, it's not necessary for functionality or warranty compliance.

The controller is WiFi-enabled via Rain Bird's LNK2 module. It currently connects to Rain Bird's legacy mobile app, but a transition to Rain Bird's 2.0 app and IQ 4 web platform is planned for 2025, which will bring expanded access and remote management options.

Rain Bird is offering this platform with just two SKUs: the controller and a single-station decoder. That's a major advantage for distributors and contractors, who won't need to manage complex inventories of sensor decoders, grounding kits, or multi-station decoders.

Steve shared insights into the 2–3 year development timeline, which included field testing, focus groups, and engineering across multiple departments. The goal: simplify, streamline, and make two-wire technology accessible to more contractors. Multiple patents were filed as part of the innovation process, particularly around the auto-addressing and system architecture.

This controller isn't for every project—but that's the point. Steve emphasized the importance of positioning the right tool for the right job. When used in the right context—light commercial sites, fast food chains, hotels, and medium-size properties—Rain Bird's ESP Two-Wire Controller can offer a compelling mix of ease-of-use, cost savings, and performance.

Contractors interested in learning more are encouraged to reach out to their local Rain Bird representatives via their distributor or visit the Rain Bird website for product videos and specs.

• Designed for simplicity and approachability

• Compatible with standard wire and connectors

• De-energized two-wire path reduces risk and simplifies install

• Auto-addressing decoders streamline setup

• Troubleshooting tools built-in (LEDs, short find mode, power measure)

• Ideal for 12–30 zone projects

• Connects via WiFi and will be fully app- and web-integrated in 2025

• No field grounding required

• Just two SKUs for the system

Andy introducing wireless sensor technology to Ohio and riffs about the "RHYTHM" of the landscape.

In this episode, Andy shares his process for manufacturing LoRaWAN wireless soil moisture sensors.