QA

How To Set Sprinkler Heads

How do you adjust sprinkler heads?

To adjust a stationary sprinkler head, find the spray radius adjustment screw on top of the nozzle. You may need to adjust it slightly to point the water spray in the direction of your lawn that you want it. Turning it clockwise can also help lower the water pressure on a spray head that is shooting too much water out.

How high should my sprinkler heads be?

The correct height for a sprinkler head is to have the top of sprinkler head just above the soil surface. No more than a quarter of an inch above the ground level. This lowers the tripping hazard, and a lawn mower can go past it without causing any damage.

What is the minimum distance between sprinkler heads?

Current fire safety codes require sprinkler heads always to be a minimum of 6 feet apart from one another to avoid cold soldering.

How do I increase water pressure in my sprinkler system?

Remove a few sprinkler heads from each of the zones in your system and cap the plumbing that led to them. Decreasing the number of sprinkler heads will increase the water pressure in those that remain. Install a boost pump on the main irrigation line.

How do I stop my sprinkler head from rotating?

Sprinklers may be adjusted with water on or off. It is recommended that initial adjustments be made before installation. Using the palm of your hand, rotate the nozzle turret counterclockwise to the left stop to complete any interrupted rotation cycle. Rotate the nozzle turret clockwise to the right stop.

How high should sprinkler heads be before sod?

The sprinkler heads should extend about 5/8-inch above the ground before sod is laid and should be level with the sod root base afterward.

Should sprinkler heads be flush with ground?

Sprinkler heads should be nearly flush with the ground. In some cases, they need to be at or below the surface level, and in others, the head can be up to three-quarters of an inch above ground level.

Can sprinkler heads be too close together?

But there’s more to sprinkler placement than square footage. Placing sprinklers too close to walls, to each other, or to obstacles can make a fire much more likely to spread.

How do I calculate sprinkler spacing?

Take the sprinkler head watering DIAMETER and multiply it by 0.6 to get the absolute maximum distance that should ever occur between any two adjacent sprinklers. (Remember most manufacturer’s give you the radius of the sprinkler, you need to multiply by 2 to get the diameter.).

What should be the distance between two sprinklers?

The minimum spacing between two sprinklers is 6 feet. The maximum distance a sprinkler can be installed from a wall is half the maximum spacing between two sprinklers. The minimum distance a sprinkler can be installed from a wall is 4 inches.

Why are my sprinklers not getting enough pressure?

The most common cause of low water pressure in sprinklers is the backflow preventer valves not opening fully. Even if the handles are partially turned or only one of them is turned, this is enough to restrict the water flow, resulting in a low-pressure sprinkler and dried out plants.

Why is my water pressure low outside?

Low pressure at your garden hose spigot can be caused by one or a combination of issues, such as clogged or leaking pipes, excessive corrosion in the spigot valve or a lack of water pressure coming from the street.

How do you fix low pressure sprinkler heads?

If this is the only issue, the fix is simple: access your backflow valves and open them completely to improve your water pressure. Most backflow preventer devices have two pipes: one that is horizontal and one that is vertical.

How deep should sprinkler heads be buried?

The depth should be around 6-8 inches to give you some room to work. Carefully lift the grass around the sprinkler head and flip it upside down on the lawn. With a small trowel, remove the dirt from around the sprinkler head taking care not to hit the sprinkler line.

Should I put topsoil down before sod?

Adding topsoil is not essential for sod but it will provide some benefits. If you cannot have the topsoil mixed into the existing soil, then do not apply it! A thin layer of topsoil prevents grass plants from rooting deeply.

Should I till my yard before laying sod?

Till the soil using a shovel or rototiller It is important to loosen the soil before planting new sod because it reduces compaction and makes it easier for the roots to grow into the soil. Also, the loose soil will hold moisture better, reducing the amount you have to water.

What is the beam rule?

In short the “beam rule” states that there must be at least 1 foot (0.3048 m)of separation between the sprinkler and the obstruction if the deflector is any distance above the bottom of the obstruction.

How many sprinklers can I run off one valve?

For example, you generally have a flow rate of 10 gpm from a ¾-inch spigot where you connect your hose. With your 10 gpm flow rate at your spigot, you could run two sprinklers at 5 gpm each. The best set-up is to run two hoses from the spigot–each to one sprinkler.