Water technology for pools, hot tubs and swim spas

Smarter water. Better control.

EVVO develops smart water-monitoring and advanced water-treatment technology for pools, hot tubs and swim spas, working with professional dealers, distributors and service companies worldwide.

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Explore the products

27+ yearspool and spa industry experience

Professional platformapp and fleet dashboard

Independent testingEVVO Clear laboratory tested

European developmentbuilt for international markets

Two technologies. One goal: better water.

EVVO Sense tells you what is happening in the water. EVVO Clear helps improve the water through hydrodynamic cavitation. Use them independently or together.

Monitor

EVVO Sense

pH, ORP and temperature, all the time

Treat

EVVO Clear

Hydrodynamic cavitation, no electricity

Manage

EVVO Professional

Many customer installations on one screen

Grow

EVVO Partners

Dealer, distributor, service and OEM

EVVO Sense probe fitted in a pipe tee for inline installation
1. Probe in the pipeMeasures pH, ORP and temperature as water flows past
EVVO Sense hub connected to the inline pH, ORP and temperature probe
2. Hub sends the dataOver Wi-Fi to the EVVO platform
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EVVO app showing live pool water quality
3. In the appThe owner sees it live – professionals see every pool on the dashboard

EVVO Sense

EVVO Sense is a permanently installed smart water-monitoring system for swimming pools, hot tubs and swim spas. It measures pH, ORP and water temperature and provides remote monitoring through the EVVO platform.

  • Installed in the circulation system – not floating in the water
  • No battery charging
  • Digital probe – clean readings, no electrical interference
  • Wi-Fi, with Bluetooth setup
  • Alerts and reading history
  • EVVO app for the owner
  • Professional fleet dashboard available
  • For existing and new installations
Explore EVVO Sense
For hot tubs and swim spas
EVVO Clear hydrodynamic cavitation water treatment unit Pumpand filter EVVO Clear cavitation chamber Treated waterback to the pool 1. Pressure drops 2. Micro-bubbles form 3. Bubbles collapse, releasing energy

How hydrodynamic cavitation works inside the circulation system

EVVO Clear

EVVO Clear is a passive inline water-treatment device that uses hydrodynamic cavitation within a swimming pool or spa circulation system. It operates alongside the existing sanitisation system and requires no electricity or moving parts.

  • Passive and inline
  • No electricity, no electronics
  • No moving parts
  • No replacement cartridges
  • Helps keep water clear and pH more stable
  • Helps reduce scale on heaters and pipes
  • Pool and spa versions
  • Independent laboratory test results
Explore EVVO Clear
For hot tubs and swim spas

Know your water is right, wherever you are

On holiday, at work or on the sofa – one look at the phone and pool or hot tub owners know whether the water is good. If something starts to drift, they hear about it straight away, not when the water turns green.

And when they need help, the dealer who installed it is one tap away – with your name, website and support button right in the app.

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EVVO app showing pool water quality: pH 7.4, ORP 650 mV, 28 °C
Swimming pool
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EVVO app showing hot tub water quality
Hot tub
EVVO professional dashboard on a laptop, showing the status of every pool on one screen

Every pool you look after, on one screen

Pool owners use the EVVO app. Service companies, hotels, property managers and other professional operators can add the EVVO professional dashboard to monitor many installations centrally.

  • See problems earlier, before the customer calls
  • Prioritise the pools that need attention
  • Reduce unnecessary service visits
  • Manage more installations with the same team
  • Create recurring revenue from monitoring and service
Book a dashboard demo

Results measured in independent laboratory testing

EVVO Clear was tested by an accredited US laboratory in side-by-side pools, where the only difference was the device. Chlorine reduction was tested to NSF/ANSI 50-2019. Full reports are available to qualified partners.

41%

Less chlorine used

To hold the same free chlorine level over seven days.

36%

Lower chloramines

Average combined chlorine 0.37 ppm against 0.57 ppm in the control pool.

23%

Less evaporation

278 gallons lost against 363 gallons over nine days, under the same conditions.

Performance shown is based on controlled testing. Actual results can vary according to water chemistry, bather load, climate, system design and operating conditions.

Built for the places water has to be right

Hot tub on a terrace with the EVVO app showing good water quality
Hot tubs and swim spas: small water volumes change fast. Continuous monitoring shows the change in minutes, not at the next service visit.

Swimming pools

Private and commercial pools, new builds and existing pipework.

Hot tubs and swim spas

Fast-changing smaller water volumes.

Pool and spa dealers

Products that create new sales and service opportunities.

Service and maintenance companies

Remote monitoring of customer pools.

Hotels, resorts and holiday parks

Many pools and spas under professional oversight.

Property management

Remote monitoring across locations.

Bring EVVO to your market

EVVO is expanding its professional partner network worldwide. Opportunities are evaluated separately by country, product category and sales channel.

Swimming pool partners

Dealers, distributors, builders and service companies.

Hot tub and swim spa partners

Specialist dealers, distributors and service companies.

Service and maintenance partners

Professional monitoring and fleet management.

OEM and integration partners

Private label, API, platform and technology integration.

A partner agreement for one category does not close a market for the others. Contact EVVO to check availability for your market and product category.

Check availability in your market

Start small, with real support

  • Six-unit starter option
  • Showroom and demo support available
  • Display and point-of-sale material
  • Professional product packaging
  • Training and direct technical support
Request the dealer pack
“I didn’t start EVVO to sell another product. I started it to solve problems dealers and pool owners deal with every day.”
EVVO founder

EVVO was founded by a pool and spa professional with more than 27 years of industry experience working with manufacturers, distributors and dealers in international markets.

After years of seeing the same challenges – manual testing, increasing operating costs and disconnected technology – EVVO was created to make water monitoring and treatment simpler and more practical.

Our story

Knowledge centre

Practical answers about water chemistry, monitoring and treatment.

Water chemistry

What is ORP in a swimming pool?

What the number means, and why it tells you more than a chlorine reading alone.

 Smart monitoring

Inline vs floating pool monitors

How the two approaches differ in accuracy, maintenance and daily use.

 Water treatment

What is hydrodynamic cavitation?

The physics behind cavitation, explained in plain language.

Frequently asked questions

What does EVVO Sense measure?

EVVO Sense measures pH, ORP and water temperature continuously and sends the readings to the EVVO app and, for professionals, the EVVO dashboard.

How is EVVO Sense installed?

EVVO Sense is installed permanently in the circulation pipework of the pool, hot tub or swim spa. Nothing floats in the water and there are no batteries to charge. Setup is done from the EVVO app via Bluetooth.

What is the difference between a floating pool monitor and an inline monitor?

A floating monitor drifts in the water and has to be taken out, charged and cleaned. An inline monitor such as EVVO Sense is installed permanently in the circulation system and measures the water as it flows past.

Can EVVO Sense monitor hot tubs and swim spas?

Yes. EVVO Sense works in swimming pools, hot tubs and swim spas. Small spa volumes change quickly, which makes continuous monitoring especially useful.

Does EVVO Sense require Wi-Fi?

Yes. EVVO Sense sends its readings over Wi-Fi so they can be viewed remotely. Bluetooth is used for the initial setup from the app.

Can professionals monitor multiple pools?

Yes. Service companies, hotels and property managers can use the EVVO professional dashboard to monitor many customer installations from one screen.

What is hydrodynamic cavitation?

Hydrodynamic cavitation happens when water is forced through a narrow passage. The pressure drops, tiny vapour bubbles form, and they collapse as the pressure recovers, releasing energy into the water.

Does EVVO Clear replace chlorine?

No. EVVO Clear is designed to work alongside the existing sanitisation system. Independent testing has shown reduced chlorine demand under controlled test conditions.

Does EVVO Clear require electricity?

No. EVVO Clear is passive. It has no electricity, no electronics, no moving parts and no replacement cartridges. It works from the existing water flow.

Can EVVO Sense and EVVO Clear be used independently?

Yes. EVVO Sense and EVVO Clear are separate EVVO product families and can be installed, purchased and used independently. They can also complement each other when both monitoring and water treatment are required.

Can EVVO Sense and EVVO Clear be installed on existing pools?

Yes. Both are installed inline in the circulation pipework, so they suit existing pools and spas as well as new builds.

How can I become an EVVO dealer or distributor?

Send an enquiry through the partner form with your company, country and the product and category you are interested in. EVVO evaluates opportunities by country, product category and sales channel.

Let’s talk about your market

Tell us about your company, market and product category. Our team will provide product information and discuss partner opportunities in your territory.

Become an EVVO partner
info [at] myevvo.com