Why I built it
[Placeholder — to be written.] A few sentences on the itch that started this: the stock schedulers that water in the rain, the summer water bills, wanting real soil-science behind the sprinklers instead of a dumb timer.
Weather-smart irrigation
Water your yard by the numbers, not by a timer.
Watering HQ tracks every zone's soil-moisture balance against your local weather and drives your Rachio controller to refill exactly the deficit — no more, no less. Skip the rain, beat the heat, and stop guessing.
Bring your own Rachio controller. Free weather data. No extra hardware.
Watering that thinks like an agronomist
Under the hood it runs an evapotranspiration soil-water balance — the same "flex daily" approach a good irrigation pro would use, automated for every zone.
🌦️
Weather-aware
Pulls daily ET, rainfall, temperature, and wind so a wet week means less water and a heat wave means more — automatically.
📊
Deficit-based, per zone
Each zone carries its own soil-moisture ledger tuned to crop, soil, and sprinkler type. It refills to field capacity — never overshoots.
🔁
Cycle & soak
Long runs are split into pulses with soak time between, so water sinks in instead of running off down the driveway.
🛡️
Safety caps
Hard per-zone runtime and daily-water limits, plus pause and winterize switches, so nothing ever runs away.
📧
Plain-language summaries
A daily email tells you what ran, what got skipped, and why — in inches and minutes, not cron syntax.
🎛️
Fixed schedules when you want them
Germinating a new lawn or running drip? Opt any zone into fixed days and minutes and let the rest stay smart.
How it works
Connect once, then let it run.
Connect your Rachio
Paste your Rachio API token during onboarding. We import your device and zones.
Describe each zone
Crop, soil, sun, and sprinkler type — a few taps set the agronomic baseline.
We plan every day
Each evening we compute the next session against fresh weather and stage the plan.
Rachio runs it
When the watering window opens, we drive your controller — and tell you what happened.