It takes 27,154 gallons of water to irrigate one acre of land with an inch of water. This measurement is useful when you need to water one or more acres and need to evaluate whether your current flow rate is adequate for getting it done according to your schedule.
The amount of water required to cover one acre to a depth of one foot. This is equivalent to 43,560 cubic feet or 325,851 gallons.
Hence, one sprinkler covers a 19.6 square meter area. So, to cover a one-acre area, we need 160 to 180 sprinklers.
1. Weather: On a hot, sunny day in midsummer, the average lawn uses 125 gallons of water per 1,000 square feet. The same lawn on a cool, cloudy day uses as little as 10 gallons of water. Mature trees can use up to 15 gallons of water per hour on a hot day.
An acre foot is approximately 326,000 gallons, which is enough water to cover an acre of land about 1-foot deep. As the diagram below shows, an acre foot of water is almost enough to flood a football field 1-foot deep.
The weight of one inch of rain on one acre of land is 6,272,640 cubic inches of water per acre times 0.036126842 pounds of water per cubic inch, which equals 226,610.6763 pounds of water per acre.
Sprinklers generally cover up wider ground and spread out water at a slow yet steady pace, which makes all the soil moisturized evenly and soaked underground. A watering hose takes time to cover space and can clutter the soil if there's too much water.
The average system uses approximately 15-16 gallons per minute, per station. Here is an easy formula to help you calculate the approximate amount of water you are using each month.
It is ideal to water lawns about one inch of water per week. To determine how long you need to water to get one inch, place a plastic container in your yard and set a timer. On average, it will take 30 minutes to get a half inch of water. So, 20 minutes, three times per week will give a lawn about an inch of water.
A common rule that is followed for obstructions within 18 inches of the sprinkler deflector is the “three times rule”. This requires sprinklers to be positioned away from obstructions a minimum or three times the maximum dimension of the obstruction.
1. Water Thoroughly: Rotor zones should run for about 30-40 minutes per zone and spray zones 10-15 minutes per zone. 2.
A volume measurement typically associated with irrigation operations on cropland. An acre-inch is equivalent to 27,154 gallons.
Calculating Pond Depth
One acre-foot of water is 325,851 gallons, and so you multiply your acre-feet (AF) by 325,851 to get your volume. Using the examples above, a 0.5 acre pond with an average depth of 4 feet would be 2 acre-feet or 651,702 gallons.
But what is an acre-foot? One acre-foot equals about 326,000 gallons, or enough water to cover an acre of land, about the size of a football field, one foot deep. An average California household uses between one-half and one acre-foot of water per year for indoor and outdoor use.
Irrigation Systems
If your system has eight stations, and you water twice per week, and each station runs for 15 minutes, then you are using 1,920 gallons each day you water, or 15,360 gallons per month.
You should run your sprinkler system for as long as it takes to apply a half inch of water to your lawn. You will need to water for at least 10 minutes per week for most systems. Measure your sprinkler system's output to ensure you're not using too much water or underwatering.
Your lawn needs 1 to 1 ½ inches of water per week. A typical in-ground sprinkler system provides ½” of watering, per zone, in a half an hour. This would mean that you need to run each zone of your sprinkler system for 30 minutes, 3 times a week to sufficiently hydrate your lawn.
When watering an established lawn, it's typically recommended to water until the top 6 to 8 inches of soil (where most turfgrass roots grow) is wet. Most lawns need 1 to 1.5 inches of water per week—either from rain or watering—to soak the soil that deeply.
Drip irrigation is the most water-efficient way to irrigate many different plantings. It is an ideal way to water in clay soils because the water is applied slowly, allowing the soil to absorb the water and avoid runoff. Drip devices use a fraction of the water that overhead spray devices use.
Uses less water
Sprinklers project water into the air and over plants, allowing some of it to drift in the wind or evaporate from leaves. But hand watering allows gardeners to direct water precisely where it's needed, minimizing drift and evaporation.
An acre of land is 43,560 square feet.
An acre-foot is the amount of water that would cover a football field in one foot of water.
There are 43,560 square feet in one acre of water that is1 foot deep. It is equal to 325,851 gallons.