# Justin Miller

> Justin Miller co-founded ConnectedYard, the company behind pHin, which Hayward acquired in 2018. He now leads San Diego-based General Galactic Systems, maker of Crystal Water Monitor, returning to pool and hot tub monitoring with engineering colleagues from pHin. His earlier career includes Apple, eBay, Plaxo and Comcast.

- **Role:** Co-founder and CEO at General Galactic Systems / Crystal Water Monitor
- **Organizations:** General Galactic Systems, Crystal Water Monitor, ConnectedYard, pHin, Comcast, Plaxo, eBay, Apple, Webvan, AT&T, NASA
- **Education:** Rice University
- **Known for:** Co-founded ConnectedYard and developed pHin., ConnectedYard was acquired by Hayward in 2018., Co-founded General Galactic Systems, maker of Crystal Water Monitor.

## Career timeline

- **Before 2014** — Worked at technology organizations including Apple, eBay and Plaxo; led a 250-person Comcast innovation center.
- **2014** — Left Comcast and co-founded ConnectedYard with Mark Janes.
- **2015** — ConnectedYard publicly announced pHin, combining a sensor, app, chemical delivery and on-demand service.
- **2018** — Hayward acquired ConnectedYard; Miller and Janes continued operating pHin under Hayward.
- **2021** — Hayward ended pHin service on December 20.
- **2023** — Crystal Water Monitor launched.
- **2024** — General Galactic announced an inline Crystal system for pool professionals and collaboration with Gecko.
- **2025** — Launched an updated Crystal Water Monitor sensor.

## Achievements

- Co-founded ConnectedYard and developed pHin.
- ConnectedYard was acquired by Hayward in 2018.
- Co-founded General Galactic Systems, maker of Crystal Water Monitor.
- Named co-inventor on US9834451B2, Chemical monitoring devices and methods.

## Latest updates

- **2025-03** — General Galactic announced the 2025 Crystal Water Monitor, featuring a redesigned sensor.
- **2024-11** — Announced a professional inline Crystal Water Monitor system and a collaboration with Gecko around waterlab.

## Links

- Website: https://www.generalgalactic.io/
- LinkedIn: https://www.linkedin.com/in/justinbmiller/

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Profile page: https://yespress.io/justin-miller
Published by YesPress — https://yespress.io
Last updated: 2026-10-26