# pHin

> pHin was ConnectedYard's connected pool-and-spa care system: a floating sensor, wireless bridge, app and subscription that sampled pH, sanitizer effectiveness and temperature, then converted the readings into specific chemical-dosing instructions. Founded in 2014, funded with $9.2 million, acquired by Hayward in 2018 and closed in December 2021, pHin is both a useful product-design case and a warning about hardware whose essential intelligence lives on a vendor's servers.

- **Founded:** 2014
- **Headquarters:** San Jose, United States
- **Founders:** Justin Miller (Co-founder and CEO), Mark Janes (Co-founder and COO)
- **Products:** pHin Smart Water Care, pHin Monitoring Subscription, Chemical subscription, Retail and Partner Portals, Pool Service on Demand
- **Notable:** Raised $9.2 million across publicly announced seed and Series A rounds., Acquired by Hayward Industries in April 2018 for an undisclosed amount., The 2020 model supported a database of more than 60 chemical brands.

## Products & services

- **pHin Smart Water Care** — A floating Bluetooth monitor, Wi-Fi bridge and mobile app that continuously tracked pH, sanitizer effectiveness and temperature, then sent status alerts and dosing instructions.
- **pHin Monitoring Subscription** — Annual cloud monitoring with historical charts, chemical recommendations and an extended or lifetime monitor warranty depending on the offer period; listed at $99 per year after the included first year in 2020.
- **Chemical subscription** — An early direct-to-consumer service that shipped pre-measured, color-coded, water-soluble chemical pods.
- **Retail and Partner Portals** — Tools that let pool retailers, technicians, dealers and manufacturers view customer water data and prepare service or chemical recommendations.
- **Pool Service on Demand** — In-app access to a network of pre-qualified pool service technicians for owners who wanted human help.

## Achievements

- Raised $9.2 million across publicly announced seed and Series A rounds.
- Acquired by Hayward Industries in April 2018 for an undisclosed amount.
- The 2020 model supported a database of more than 60 chemical brands.
- ConnectedYard received a U.S. design patent for the monitoring device in June 2017.
- An independent PoolPro test found pHin's readings nearly always matched results from three separate pool stores.

## Latest updates

- **2020-04** — Hayward introduced an updated pHin with refreshed software, expanded analytics, retail pickup and support for more than 60 chemical brands.
- **2021-12** — Hayward ended the pHin service and closed the business on December 20; the official app and active monitoring ceased.
- **2022-01** — iopool published instructions for connecting some pHin monitors directly to its app over Bluetooth, without support for pHin's Wi-Fi bridge.

## Links

- Website: http://www.phin.co
- LinkedIn: http://www.linkedin.com/company/phin
- Twitter/X: https://twitter.com/GetpHin
- Facebook: https://facebook.com/getpHin

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Profile page: https://yespress.io/phin
Published by YesPress — https://yespress.io
Last updated: 2026-09-26