Hydra watches the line and acts without waiting for someone in the house. Zone protection. Metered freeze without an open faucet. Leak always wins. Every action lands in a log a carrier can see.
Pipes don’t burst because it’s cold. They burst from pressure behind an ice plug. Hydra is freeze and leak on the same line, decided on the device, written to a log. Physics is the mechanism. Risk transfer is the sale.
The usual advice is to leave a faucet running. That’s about 3 gallons an hour, 72 gallons a day — and it still doesn’t guarantee the pipe won’t freeze.
State Farm paid more than $628 million on 20,000+ frozen-pipe and winter water claims from 2024 through June 2025 — more than $30,000 a claim, one carrier.
Every condition, zone, and action shows in the app as it happens. That same record is how a carrier can verify Hydra is installed and working.
Decisions happen on the device. The app is the record — and what the $50/month monitoring buys. This is not an “alert then shut the whole house” gadget.
Freeze protection keeps that line open and pulses a trickle. A leak on the same line stops the trickle and closes that zone. Built in. Patent pending. Recovers on its own when the probe dries. No setting can turn leak response off.
At 32°F or below the water stays on. A timed pulse keeps the cold zone moving at Hydra’s design rate of 0.5 gal/hr (1.9 L/hr) — Clemson HGIC 2369’s calculated minimum for an insulated pipe at 15°F — not every faucet running all night.
Moisture sensors find the wet zone and that zone’s valve closes in seconds. The rest of the house keeps water. The main closes as backup if more than one zone is wet.
Line pressure is watched and flagged in the app. A mechanical relief valve handles the physical release. Pressure never closes the main on its own.
Six days. 89,859 readings at two-second intervals. Three independent cold-soak freeze tests. Controlled dry-ice chamber — about 80°F in the yard. Not winter weather.
Three freeze tests, same result. First: 6.46 hours continuous below freezing, unattended, low 10.6°F, trickle duty 10.0% vs 10.0% design, 6,371 of 6,371 readings automatic. Second: independent soak to −11.1°F, Zone 3 trickle ~10.6%, zero overrides. Third: 3.50 hours to 15.8°F, trickle 10.1% both zones. No manual intervention in any of the three.
61.7 hours continuous in one unattended stretch (60,882 samples, 99.995% automatic), including the first freeze plus more than two warm days at 68–103°F. Across that stretch and the full six-day file: every time a monitored line read wet, that line’s valve was closed. Zero exceptions.
Leak still wins mid-freeze. Two leaks staged during the first soak. Both closed that line within one logging cycle — under 4 seconds. The second event had zero manual help.
Open-air test probes can read wet from dew. Hydra still did the right thing: close when wet, reopen when dry, no reset. Sealed sensors are the production fix. This report does not claim a measured trickle gallon rate (timing is measured; the flow sensor is below its accurate range at this pulse) or a pressure result (no calibrated gauge in the loop). Not winter weather. Not a burst test.
Clemson’s engineering factsheet (HGIC 2369) calculates an insulated pipe at 15°F needs 0.5 gal/hr. That is Hydra’s design rate. Say design rate — the volume catch test is next.
3 gal/hr
72 gal/day. 216 gal over an assumed 72-hour freeze.
0.5 gal/hr design rate
12 gal/day. 36 gal over the same 72-hour freeze. One-sixth the water.
180 gallons saved per home over an assumed 72-hour freeze — 681 liters. Timing on the yard rig already matches the 10% design pulse. Volume measurement is the next test.
$30k+ average winter water claim, State Farm, 2024–June 2025. A typical 2-zone Hydra install is $4,000 against that number.
Equipment is $2,500–$6,000 by zone count. A typical 2-zone home is $4,000. $50/month keeps monitoring and service on. Ullur LLC sells Hydra; a carrier credit is the price equalizer — that conversation is open, not closed.
Remote pre-qual or video walkthrough. We see if the house, the freeze risk, and the zones even fit before anyone drives out.
Paid only when we are sizing a real install. Maps the main, the zones, and the risk points so equipment is right the first time.
Zone valves and leak sensing, metered freeze trickle, carrier-visible app reporting, main-line backup shutoff.
This form is a template — wire it to your mailer when you publish. Homeowners: video walkthrough, no charge. Carriers and MGAs: the September 2026 log and a call. $500 on-site only if we are sizing a real install.