John’s journey began in the trenches of everyday plumbing calls, where clogged AC drain lines meant frantic homeowners, soggy ceilings, and costly repairs. After one particularly frustrating night spent mopping up his own flooded attic, John found inspiration while watching his automatic lawn sprinkler bring his yard to life—could the same principle safeguard every home’s AC system? He set up a makeshift workshop, experimenting with off-the-shelf parts, rigorous flow tests, and countless iterations on evenings and weekends. Early prototypes lived in friends’ attics and local HVAC shops, where glowing feedback from fellow plumbers confirmed he was onto something big. Over the next decade, John refined his design to withstand Texas heat and deliver reliable, chemical-free operation year after year. Today, the Mercy Valve stands as a testament to his perseverance—quietly protecting homes across the state and beyond, one clog at a time.