Rain Barrel: Tank Forecast
Rain Barrel: Tank Forecast
Fill Level & Overflow Alert
Download on the App StoreEnter your roof catchment area, collection efficiency and tank size, and RainCatch converts the forecast into the water you can actually expect to collect.
See how the level climbs across the coming days, which day the barrel tops out, and how much runs to waste as overflow.
If a storm is going to fill you past capacity, you'll know in advance — in time to draw water down and keep every gallon you can.
Log each watering so your level stays honest. The forecast reflects what you actually use, not just what falls from the sky.
Set up several barrels and catchment surfaces — house, garage, shed — and see which one earns its keep after the same rain.
Put the next expected collection on your Home Screen. Prefer to skip location? Type in the rainfall yourself and everything still works.
Use the footprint of the roof section that drains into your downspout — length times width as seen from above, not the sloped surface. A pitched roof catches the same rain as its flat footprint, so measuring from above is both easier and more accurate.
