ABOUT H2Flow
H2flow Controls is a leading global provider of advanced solutions for the control, protection, and measurement of swimming pool and aquatic facility systems. Built on a foundation of precision engineering, reliability, and energy-efficient performance, H2flow designs and manufactures a broad range of products tailored specifically for pools, spas, and aquatic centers—including flow meters, constant flow residential pool pumps, wireless autofill devices, and variable frequency drives.
The company is widely recognized for innovations such as FlowVis and EcoFlow VFD, technologies that help ensure proper filtration flow rates, safeguard pumps and equipment, and optimize overall pool system efficiency. H2flow’s solutions are engineered to enhance safety, maintain water quality, and reduce operating costs by minimizing downtime and lowering energy consumption.
Supported by a strong global network of partners, H2flow serves residential, commercial, and recreational aquatic facilities worldwide. Their commitment to innovation and quality has made H2flow a trusted partner for pool professionals seeking reliable, high-performance equipment that keeps aquatic systems running at maximum efficiency.
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Water level issues are a common (and costly) headache.
In hot climates especially, evaporation causes levels to drop fast leading to dry pumps, burned-out equipment, and repair bills no one wants. On the flip side, overfilling can flood decks, wastewater, and damage landscaping or structures-not to mention hit your wallet.
This course walks you through how to install LevelSmart™ the right way. Whether you’re a pool pro or a hands-on homeowner, we’ll show you how to set it up, avoid common mistakes, and make sure it works exactly as it should every time.
H2flow on the talking
pools
podcast
In this episode, Natalie Hood interviews Sean McDermott from H2 Flow to bust common myths about pool water circulation, flow measurement, and system efficiency.
They explore how proper understanding and technology can improve water quality, safety, and energy use in pools.
Key topics
- Myth of continuous circulation with pump running
- Flow rate vs filtration effectiveness
- Importance of accurate flow measurement
- Role of VFDs in energy savings
- Mechanical issues masquerading as chemical problems
Frequently Asked Questions
What is the H2Flow Signal Converter and what problem does it solve?
The H2Flow Signal Converter is a new accessory designed for existing FlowViz flow meters. It allows these meters to provide a 4-20 milliamp output, which is a standard signal for automation systems. This addresses a customer demand for a lower-cost solution to integrate FlowViz meters directly into automation systems without needing the digital display screen. Previously, achieving this level of integration might have required more expensive solutions or the full FlowViz Digital display, which was not always necessary for automation purposes.
How does the Signal Converter improve the performance and integration of FlowViz meters with automation systems?
The Signal Converter takes the non-linear output from FlowViz meters and converts it into a linear 4-20 milliamp signal. This linear output is crucial for seamless compatibility with Variable Frequency Drives (VFDs), various automation systems, and select variable speed pumps. By providing a linear signal, it enables these systems to accurately interpret flow data, which is essential for applications like maintaining constant flow rates in variable speed pump operations for code compliance in commercial pools, and optimizing the efficiency of heaters and heat pumps.
What are the key competitive advantages of the H2Flow Signal Converter compared to existing solutions?
The H2Flow Signal Converter offers several competitive advantages. Firstly, it provides high accuracy (over 98%) and reliability, surpassing traditional paddle wheel sensors from competitors like Blue White or Signet, which are prone to collecting debris and breaking down. Secondly, it is a more cost-effective solution; a complete 6-inch FlowViz setup with the Signal Converter is priced around $1000, significantly lower than some competing paddle wheel sensors which can cost over $1000 for the sensor alone. Additionally, the H2Flow solution is NSF50 certified, unlike some competitors, and offers higher profit margins for dealers (twice that of Signet).
What are the primary use cases for the Signal Converter, especially concerning variable speed pumps?
The primary use case for the Signal Converter is to enable variable speed pumps to operate at a constant flow rate rather than a constant speed. This is particularly important for commercial pools where maintaining specific turnover rates is critical for code compliance. By providing accurate and linear flow data, the Signal Converter allows automation systems to adjust pump speeds precisely to achieve and maintain desired flow rates. This also optimizes the efficiency of pool heaters and heat pumps, as they perform best at consistent, ideal flow rates.
What is included in the Signal Converter kit and what are the initial troubleshooting steps for installation?
The complete Signal Converter kit includes the sensor itself, longer screws for installation, a power supply (the same 12-volt wall-wart power supply as the FlowViz Digital), and all necessary wiring. This includes an 8-meter cable on the sensor and a 4-meter cable for the output signal. For troubleshooting, the first step if data appears incorrect is to check the dip switches inside the unit, as these are used for different model settings. Additionally, for older FlowViz units, a magnet may need to be installed, and the sensor will blink blue if the magnet is missing.
What are the challenges in integrating the Signal Converter with various automation systems, and what is H2Flow's future development plan?
While the Signal Converter works with all commercial automation systems that accept a 4-20 milliamp input, leading automation companies like Pentair, Jandy, and Hayward often prefer proprietary RS485 communication protocols. This means that direct integration with these systems may require programming on the automation side and is not a “plug-and-play” solution for homeowners. To address this, H2Flow is actively developing an RS485 version of the Signal Converter to ensure broader compatibility and easier integration with these preferred communication standards.
How is H2Flow approaching the distribution and sales of the Signal Converter?
H2Flow’s distribution strategy for the Signal Converter focuses primarily on the commercial market, particularly for applications where constant flow is critical for compliance. They are submitting part numbers to key distribution partners such as Heritage, Base, and State Pool Corp. Commercial dealers are a key target, as they often purchase directly. H2Flow also recognizes the importance of involving automation specialists in the sales and installation process to ensure proper integration of the Signal Converter into existing systems.
What is the update on H2Flow's autofill product development?
H2Flow is developing an autofill product specifically designed for vinyl liner installations. This product will automatically shut off water and vacuum at a preset level. Key features include dual sensor redundancy and a heavy-duty solenoid valve for enhanced safety and reliability. The expected dealer cost for this autofill product is between $700 and $900. H2Flow plans to create a time-lapse video demonstration for marketing purposes to showcase its functionality.
For Pool Owners:
Why does my pool water level keep dropping?
It could be evaporation, splash-out, a hidden leak—or all three. LevelSmart automatically compensates for normal loss and flags abnormal refill activity, helping you spot issues early.
How can I keep my pool water level consistent?
With LevelSmart, you set it once and forget it. The system fills only when needed and shuts off when the water hits the ideal level.
Is there a way to automatically fill my pool?
Yes—LevelSmart is your hands-off solution to water refills. It’s one of the most efficient and reliable automatic pool water fillers available.
Can this replace my broken autofill?
Absolutely. If your current pool autofill isn’t working, LevelSmart is a wireless, retrofit-friendly solution that won’t require cutting into your deck.
What’s the best pool autofill system for 2025?
You’re looking at it. LevelSmart combines smart monitoring, reliability, and leak detection in one sleek package.
How do I prevent pump or heater damage from low water?
By never letting the water get too low. LevelSmart protects your entire equipment system by maintaining consistent, safe levels—automatically.
For Pool Pros & Builders:
Is this a good autofill for new pool construction?
Yes. It’s a clean install with no trenching required, and it adds long-term value to the build by protecting equipment from day one.
Can I retrofit this without cutting into the deck?
Yes. LevelSmart is designed for both new and existing pools, and it installs without tearing into hardscapes.
What’s the best autofill system for pools with automatic covers?
LevelSmart is ideal. Low water levels can cause major cover damage, and this system helps maintain the level automatically.
How can I reduce service callbacks from clients?
With LevelSmart, water level issues are handled automatically—and leak trends can be flagged early, preventing those “surprise” calls.
What tools help prevent dry pump issues?
This one. LevelSmart helps maintain optimal water levels to protect pumps, filters, and heaters from running dry.
For airbnb hosts:
How do I maintain pool water levels in an Airbnb property?
LevelSmart ensures your pool or spa stays full and functional between guest stays—no manual topping off needed.
Do I need to check the water between bookings?
Nope. LevelSmart handles it. It automatically fills as needed and prevents overfilling too.
A guest complained about dry spa jets—will this fix that?
Most likely, yes. Low water is often the cause of dry jets and other spa issues. LevelSmart keeps levels stable to avoid guest complaints.
Are there smart pool products for Airbnb hosts?
LevelSmart is a top pick. It’s low-maintenance, reliable, and works quietly in the background to protect your investment. In addition, with LevelSmart Online, you can monitor water consumption remotely.
For Fountain and Landscape Pros:
Can I automate fountain refills?
Yes. LevelSmart works with both residential and commercial fountains to manage water levels automatically.
How do I stop my fountain pump from burning out?
Maintain a consistent water level. LevelSmart helps protect pumps from running dry by refilling only when needed.
Is this a good autofill system for large or commercial fountains?
Yes. It scales easily, installs cleanly, and dramatically cuts down on manual maintenance visits.
How do I reduce labor on water feature maintenance?
With LevelSmart installed, you can skip the constant checkups. The system handles the water level for you.
Technical & Product Questions:
Is LevelSmart difficult to install?
Not at all. It’s one of the easiest systems to install—especially since it requires no trenching or deck cuts.
Does it detect leaks?
Yes. If LevelSmart starts refilling more often than expected, it’s usually a sign that something’s not right. It’s an early-warning system built right in.
Can I use it with a saltwater pool?
Yes. LevelSmart is compatible with both salt and chlorine pools.
Can this be used with a spa or plunge pool?
Absolutely. It works with spas, pools, and even cold plunges.
Where can I buy LevelSmart?
Contact your local distributor or visit H2FlowControls.com for more details and support.
