08/15/2026
We didn't say it. Google did.
Someone searched "freeze plugs coils" this week, and the AI Overview explained the technology, then added the catch, in its own words: "they require manual replacement and can cause facility flooding."
Because that's how freeze plugs work. The cap bursts to save the coil, but the port stays open. Water flows until someone isolates the system, finds every burst cap, and replaces them.
The alternative Google named senses both temperature and pressure, discharges a controlled amount of water, and reseats. The coil returns to normal operation after the thaw.
That's Freeze Block®.
If freeze protection comes up this season, one question sorts it out: does it reseat?