Each zone should include plants with the same watering needs, or an area of the lawn. Then, **add up the necessary flow rate in GPM of all the sprinkler heads, divided by the GPM of your water supply**. The resulting number will equal how many zones you need.

## How many sprinklers can I put on one line?

This will primarily be determined by the total flow rate and pressure you have available at your source. 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**.

## How many pop up sprinklers can I run?

This **depends on the flow rate you are able to achieve from your water source**. Calculate your flow rate using the bucket test, then reference the flow consumption of the pop-up sprinkler. E.g. If you have a 45lpm flow rate, you can run 7.5 half circle professional sprinklers as they use 6 lpm (45 / 6 = 7.5).

## Can two sprinkler zones run at the same time?

**Running multiple zones at once is usually not possible due water-pressure and flow limitations at residential properties**. As with any standard irrigation controller, you can wire multiple solenoids/valves to the same zone output if you want.

**How do you calculate the number of sprinkler heads per zone? – Related Questions**

## Can I daisy chain sprinkler heads?

Because of the multiple hose connectors, **you can “daisy chain” several sprinklers together**, connecting them with multiple garden hoses. This lets you water a much greater area all at once (although you need several garden hoses – see our article on Best Garden Hoses to find the best ones).

## How long should I let my sprinkler run in one spot?

How Long Should I Water at a Time? A watering session should be long enough to soak the area sufficiently so all the roots receive a beneficial drink. Sprinklers should be set to run for about **30 to 35 minutes at a time twice a week**. Your goal is at least 1″ of water a week for your lawn.

## How do you run all sprinkler zones?

## How does a multi zone sprinkler system work?

How Do Sprinkler System Zones Work? Zones are set up so the different areas of your yard get the perfect amount of water for their unique needs, using a variety of sprinkler heads and proper spacing so everything gets enough water, without waste. Bushes and shrubs need less water than grassy areas.

## Why are my sprinklers running twice?

The answer is usually there are **too many programmed start times** — program start times are being confused with zone (station) run times.

## What is the maximum distance between two sprinklers?

(32) In no case shall the distance between sprinklers exceed **12 ft (3.7 m)**.

## What is the 18 inch rule for sprinkler heads?

**Nothing should be in that area between the bottom of the sprinkler heads and the imaginary horizontal plane parallel to the ceiling that is 18 inches below**. This is done to allow an even and unobstructed spray pattern from the sprinklers when triggered to extinguish the fire.

## What is the maximum distance between fire sprinkler heads?

1 of NFPA 13, which states that the distance from the sprinkler to the wall can be no more than one-half the allowable distance between sprinklers. The max distance between standard spray sprinklers in light hazard settings is **15 ft.** **(4.6 m)** (with exceptions for light-hazard, combustible concealed spaces).

## What is the maximum height of sprinkler head?

The maximum ceiling height shall be **40 ft**. The minimum operating pressure shall be either 30 psi or 60 psi based upon the applicable storage and ceiling height for the installation as follows: 30 psi for storage heights up to 25 ft.

## Can you extend sprinkler heads?

**The body of the sprinkler head is connected to a flexible, black tubing called funny pipe or swing pipe**. This is what you will use to extend your sprinkler head.

## How far can an upright sprinkler head be from the ceiling?

Under unobstructed construction, the distance between the sprinkler deflector and the ceiling shall be **a minimum of 1 in.** **(25 mm) and a maximum of 12 in.** **(300 mm)** throughout the area of coverage of the sprinkler.

## What is the minimum distance between a sprinkler head and any obstruction?

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 close can a sprinkler head be?

In a nutshell, NFPA 25: Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems says that objects that can block a sprinkler’s spray must be **at least 18 inches away from the deflector**.

## How close can a sprinkler head be to a duct?

Do not install cable trays, heating ducts or other large obstructions closer than **3 times its width**, to a sprinkler head. (i.e. if the duct is 2 ft (0.6 m) wide, then it should be 6ft (1.8 m) from the sprinkler head.)

## How much clearance do you need below sprinkler heads?

OSHA does not impose penalties or require abatement of de minimis violations. Question 1: 29 CFR 1910.159(c)(10) in part states, “The minimum vertical clearance between sprinklers and material below shall be **18-inches (45.7 cm)**.” Does this apply only to materials placed directly below the sprinkler heads?

## Can sprinkler heads be above drop ceiling?

**Their economy is the result of keeping sprinklers above ceilings to reduce the cost of sprinkler installation**. For example, drop-out ceilings eliminate the need to extend (drop) pipes from sprinkler mains (usually located just under a floor or roof structure) down to ceiling height.