How Long You Should Keep Your Sprinkler On (Lawn Grass)

How Long You Should Keep Your Sprinkler On (Lawn Grass)

It is important to have a sprinkler system that shuts off automatically so that you don’t waste water.

Depending on the type of sprinkler system you have, you might need to keep it on between 15 and 45 minutes.

So this is another reason to have a timer. It is important to have a sprinkler system that shuts off automatically so that you don’t waste water unnecessarily.

The timer can have a maximum time to run, and it will turn off automatically when the time limit is reached. If you are using a drip hose, it will turn off after an amount of water has been dispensed.

Nonetheless, Drip hoses are a great way to water your lawn or garden.

They can be left unattended for days and typically use less water than a traditional hose.

Drip hoses are designed with an on/off switch at the end of the hose. This on/off switch will automatically shut off the drip after a certain amount of time has elapsed, usually about 10 minutes or so.

Get To Know Your Lawn First

The first thing we’re going to need to know here is how much lawn you have to keep moist.

To make things easier, find your property size in acres and then divide it by 40, that will give us the number of acre-feet of water that must be applied each year.

We can assume that most of the timed sprinkler’s on time are set for 8 hours and this time frame will depend largely on how much lawn property has.

An average sprinkler with about 5,000 square foot are should be timed for 12 minutes per zone which equals 60 minutes. Adding this up to 144 hours per year.

The recommended watering days would be Monday, Wednesday, and Friday or Tuesday, Thursday, and Saturday when those days match your typical work weeks.

How Much Water to Use?

Generally, a ¾- to 1-inch depth of water will do the trick, but do some testing on your own lawn first .

A good rule of thumb is to keep your sprinkler irrigating at a time that covers 80% to 85% of the yard in order to use the least amount of water.

Yard/Lawn Length:¾-inch depth of water will do the trick for a ½-inch depth of lawn.1½- inch to 2- inch depth of water will do the trick for a 2½ – to 3½ -inch depth of lawn.4 – 5 inch depth in irrigation needs about a 1- inch depth of water.2½- 3½ -inch depth needs about a 4- 5-inch depth of water.

When to Water the Lawn?

This is a question that not only gardeners but also citizens of semi-arid climates struggle to answer.

Sprinklers are used to ensure that all blades of grass receive the appropriate amount of water they need throughout the hot summer months.

Placing them on the lawn and then forgetting about them only provides temporary relief and causes more problems in the long term.

The three main aspects of expertise you will want to consider when deciding when to water your lawn are plant type, soil type, and climate zone.

If you have a newly planted lawn that is fast-draining and out in the sun, it is best to water your lawn every two days.

If your area has milder temperatures, even if the plant type needs more water, it can be watered every three days or less.

However, if you have soil that is moist and constantly wet with no drainage, you should water your lawn more often.

Lastly, if your lawn is in a climate zone where the rainfall is low and in the summer months are exceptionally hot, it would be best to water your lawn every day to ensure the plants get enough water.

How to Tell If You’ve Watered Enough

One of the most common misconceptions is, water lawns is the famous quote “I watered my lawn enough if I can see the ground from on top of my sprinkler head.”

Actually, all you know by doing that is your sprinkler is reaching an average height of 18 to 24 inches. You may not have watered your lawn long enough, even if you see the ground while looking down.

The best way the tell if you have water enough is to follow the steps below:

– For lawns 1/2 inch think or shorter, look for moist patches in the lawn.

– Slightly taller lawns will be wet for 12–18 inches when properly watered.

– Actively growing, dense plantings and grass will require more water, at least 15 inches deep and up to 36 inches deep when proper soil texture is available.

– Once you are able to see all three blades of grass or the top three inches of most planters, it’s time to water

– Once you are able to see all three blades of grass or the top three inches of most planters, it’s time to water.”

To water properly for a lawn, you will want to water it about every other day. If your lawn is not wet enough – “It’s time to water.”

Watering Different Types of Lawns

Sprinklers can be used to water various kinds of gardens depending on the climate and density.

It is always important to keep in mind the lawn type that you are using the sprinkler for, so as to avoid overwatering and under watering.

To water a garden, the sprinkler is turned on and moves back and forth. The waterfalls from heights.

When it reaches the end of the lead pipe that leads to the nozzle, it is forced by gravity into another pipe which leads to a rainwater tank or simply drains away.

The time period between each rotation of the sprinklers depends on the type of sprinkler.

The pressure of water that is being delivered. The time period between each rotation of the sprinklers depends on the type of sprinkler and the pressure of water that is being delivered.

For Best Practices, Calculate How Long To Leave Your Sprinklers On


Sprinklers are a convenient way to keep your lawn watered without the time and effort, but getting the timing just right can be tricky – and costly.

Sprinklers generally run from 30 minutes to 2 hours in one time slot, but sometimes you might have to turn it on 2 or more times over 24 hours.

To determine how long you should leave your sprinkler on, there are a few factors at play.

You need to know your soil’s water-retention capacity and what kind of irrigation system you are using (aboveground or below ground) in order to get a good idea of when it will run out of water.

Industrial sprinkler systems, for instance, typically don’t need programming and can be set up however they want. They use GPS data and the system decides how long to run based on the kind of plant they are watering and how much soil is being soaked.

If you want to determine the water-retention capacity of your soil, you need to calculate the percolation rate – or how many millimeters of water will be absorbed by your soil at a given distance.

This figure is usually around 1/2 inch in total for sandy soil and 1 inch for clay soils.

If you have a large clay area you might want to set up multiple sprinklers in different settings and see which one performs best.

 The first step is to figure out where you want your sprinklers to be. Generally, it’s a good idea to put them in eye-level spots where the kids will have access.

For example, you might want to place them around your garden or near the patio you’re planning on building. You can also put them around trees or shrubs in a large yard.

Once you’ve determined where to place the sprinklers, it’s time to install the system.

Water Lawns Based On The Weather

One of the important tasks in keeping an outdoor yard spread green is adjusting your watering schedule depending on the weather patterns.

You may have already invested in some sort of sprinkler system and so this guide will help answer any questions about placement and duration related to a home irrigation setup as well as strategies for deciding how much water to turn on at one time during a period of HOT weather.

-Don’t let the grass go brown, especially in the summertime.

-Water your plants/lawn once a day during the hottest weather.

-Controlled irrigation can prevent water loss, disease, and plant death by keeping soil temperatures within an appropriate range.

-Expect to spend about 20% of your total outdoor watering on plants that require less water and 40% on plants that require more water.

-Water in the morning to avoid over-watering and prevent evaporation.