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At different pressures, the sprinkler head and nozzle will consume different amounts of water. For example, at 35 pounds per square inch (PSI) the 5000 Series Rotor using the 3.0 nozzle will use 3.11 gallons per minute (GPM). If your home’s water capacity was 10 GPM, you could place 3 heads per zone.
How do you calculate sprinkler heads per zone?
Calculating Zones 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 do I calculate sprinkler heads?
Consider the distance of each sprinkler head. If they distribute water in a circumference of 8 feet around, place them 4 feet apart to ensure every part of the lawn gets watered. Whatever the maximum spray distance of the sprinkler head, divide it in half to find out how far apart to place your sprinklers.
How many zones can a sprinkler valve control?
Can I run more than one zone at a time? For the controllers HC, PROHC, HPC, you can only run a single zone at a time based on the power output available. Running multiple zones at once is usually not possible due water-pressure and flow limitations at residential properties.
How far apart should sprinkler heads be?
Types of Sprinkler Heads Because of the lower PSI the distance of the spray rarely exceeds 15ft. Meaning that spray heads should never be placed further than 15 ft. apart as this would create dry spots (i.e. dead grass) in your lawn.
How many sprinkler zones do I need?
Draw Your Sprinkler Zone Plan With simple math, you can determine how many heads in each zone and then take the total number of sprinklers you need, and divide that by your head/zone number and that will tell you how many zones you need.
How long should you run each sprinkler zone?
Water Thoroughly: Rotor zones should run for about 30-40 minutes per zone and spray zones 10-15 minutes per zone.
How many fire sprinkler heads do I need?
New fire codes allow a single sprinkler head to protect up to 200 square feet, depending on the design of the fire sprinkler, flammability of the building and the materials within it. The NFPA delineates spacing requirements based on the material hazards, plumbing, and piping systems of the specific construction.
What is the minimum distance between a sprinkler head and any obstruction?
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 ceiling?
Distance from Ceiling: minimum 1″, maximum 12″ for unobstructed construction. The minimum 1″ is typical; however, concealed, recessed, and flush sprinklers may be mounted less than 1″ from the ceiling and shall be installed based on their listing.
How many valves does a sprinkler system have?
Most automatic sprinkler systems are set up with two types of valves. A brass “gate valve” or “ball valve” is usually located right after the “tee” where the sprinkler system cuts off from the main source of water to the house.
How many heads can one zone run?
At different pressures, the sprinkler head and nozzle will consume different amounts of water. For example, at 35 pounds per square inch (PSI) the 5000 Series Rotor using the 3.0 nozzle will use 3.11 gallons per minute (GPM). If your home’s water capacity was 10 GPM, you could place 3 heads per zone.
Can I connect 2 sprinkler valves together?
Yes, it is often possible to run two valves at once. You may need to do some adjusting of the sprinklers as the water pressure operating them is likely to be less when two valves are on. Both valves running at the same time may require more water than the pipe supplying them can reasonably handle.
How much should a sprinkler head overlap?
Sprinklers are intentionally designed to require 100% overlap of watered areas. That means each sprinkler throws water ALL the way to the next sprinkler in each direction. READ THAT AGAIN! That’s right, 100% overlap of watered areas is REQUIRED or you will get dry spots!.
How deep should sprinkler pipes be buried?
Dig for Your Sprinkler System The trenches will be relatively shallow, usually 6 to 12 inches deep, depending on your area’s freeze cycles and frost severity. The trench must also be deep enough to allow the sprinklers to retract underground to prevent breakage from lawn machines.
Can you mix different sprinkler heads?
While you can mix different brands in the same zone, don’t mix the type of head because they have different flow rates. Rotor heads, spray heads, matched precipitation etc all throw water at a different rate.
Where should sprinkler heads be placed?
Sprinkler heads should always be placed so that the sprays overlap—the distance one head throws should reach the head of the next sprinkler. This is called head-to-head coverage, and sprinklers should be placed equidistantly in each zone to achieve it.
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 much should sprinkler heads overlap?
Sprinklers are intentionally designed to require 100% overlap of watered areas. That means each sprinkler throws water ALL the way to the next sprinkler in each direction. READ THAT AGAIN! That’s right, 100% overlap of watered areas is REQUIRED or you will get dry spots!.
How far apart should pop up sprinklers be?
Types of Sprinkler Heads Because of the lower PSI the distance of the spray rarely exceeds 15ft. Meaning that spray heads should never be placed further than 15 ft. apart as this would create dry spots (i.e. dead grass) in your lawn. It is always important to install sprinklers with overlap for full coverage.
