Rain Barrel Water

Rain Barrel Water is for one rain barrel. Enter its volume and the mark you see on the side, then see how many pots that water can still fill. A pot is often less than one mark. Leftover water stays on the top mark, so the count does not drop a whole mark for a single pot. The bottom marks can stay in reserve for sludge and the outlet. A wider waist gives the middle mark more liters than the bottom. Plan a round with small, medium, and large pots. The pour goes through only when it fits the usable water. When you catch rain, add the marks you see. After a pour, check the line, or undo the last entry. Everything stays on this device. There is no rainfall feed, no plant identification, and no calendar of days between pots.