The average usage of water in a residential sprinkler system is between 12 – 30 gallons per minute depending on the type and size of the sprinkler head.
Normally each sprinkler head can deliver anywhere from I to 6 gallons per minute. A typical residential water meter can deliver 30 gallons per minute. With this in mind; 5 sprinkler heads can use 30 gal/min.
The answer is that it usually takes up to 30 minutes to get a half inch of water. Watering 3 times per week equals to an inch of water on a lawn.
480 x 4 zones = 1,920 gallons per cycle for 4 zones 1,920 x 2 cycles = 3,840 gallons per week x 4 weeks; Totaling 15,360 gallons a month through an irrigation meter or through a residential meter not including use inside home.
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.
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. acres have more than one water source. Source: USDA NASS 2018 Irrigation and Water Management Survey (2017 Census of Agriculture).
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.
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. This formula works best with healthy, well-cultivated soil.
On average
A person uses 145 litres per day. 109 litres per property are lost through leakage every day.
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.
The average American family uses more than 300 gallons of water per day at home. Roughly 70 percent of this use occurs indoors. In addition, there are other miscellaneous uses of water in the house which may be very significant, depending on the degree of water conservation by the household.
The water industry estimates that an average person uses 3,000 gallons of water monthly, so a family of 4 would use 12,000 gallons for bathing, cooking, washing, recreation and watering.
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.
Don't water everyday.
The more shallow your grass roots are, the less hearty it will be in hot weather. Instead water about two times per week for longer periods of time. The local lawn companies I have spoke with around my area (North Central Texas) recommend about 20-30 minutes per watering cycle twice a week.
Avoid watering grass on a hot afternoon when it's 95 degrees or higher. The best time to water grass is at dawn or in the early evening. Water deeply three times a week instead of a little water daily. Test whether your sprinkler system is watering your lawn evenly.
Not Adjusted to Properly Cover the Right Areas
If one sprinkler head sprays over another one, this leads to overwatering and wasted water and money. Your grass and plants will absorb what they need to survive. Water they don't need will sit and pool on the surface of your grass.
Most sprinkler systems use around 12 gallons of water per minute. If left unchecked, that could mean a lawn filled with standing water. A general rule of thumb is to water three days a week in the spring and summer and two days a week in the fall and winter.
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.
Multiply your lawn's square footage by 0.62 gallons (equal to an inch of water per square foot) to determine the total number of gallons needed for the entire lawn.
This is often expressed as gallons per minute per acre (GPM/acre). This value varies significantly with the agency, locality, crop, and specific local factors, but usually ranges from 3-4 GPM/acre to 10-15 GPM/acre.
One inch of rain falling on 1 acre of ground is equal to about 27,154 gallons and weighs about 113 tons. An inch of snow falling evenly on 1 acre of ground is equivalent to about 2,715 gallons of water.