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How many drip emitters can I put on a mainline?

Know your flow

You can add as many drip emitters as your flow rate will support. A typical hose bibb delivers 240 gallons per hour. So you have 240 gallons available for your emitters to consume. Simply add up the total number of gallons to be consumed by the emitters that you plan to add. You can put 240 1 gallon-per-hour emitters on the line (or 480 1/2 gallon-per-hour emitters or 120 2 gallon-per-hour emitters).

Keep in mind that when adding adjustable emitters and micro sprays the output can be in excess of 30 gallons per hour. It doesnt take many sprays to use up those 240 gallons.

If you plan to add the maximum allowable emitters to your drip tubing, consider using pressure compensating emitters as they will maintain the same flow rate within a range of pressure (psi) and elevation changes. Non-pressure compensating emitters will output more or less water with changes in pressure or elevation. You may run out of water for emitters at the end of the line in this case.

More information on Drip Emitters & Drip Main Line Tubing

Choosing the right drip emitter

Compare all drip emitters

Drip Tubing Maximum Run Chart (PDF)

Drip Irrigation Basics & Installation


1/4
1/4" x 100' Poly Micro Tubing for Drip Irrigation Irrigation Direct
From: $6.50
 
1/2 GPH Pressure Compensating Drip Irrigation Emitter - Button Dripper Irrigation Direct
1/2 GPH Pressure Compensating Drip Irrigation Emitter - Button Dripper Irrigation Direct
From: $0.42
 
1 GPH Pressure Compensating Drip Irrigation Emitter - Button Dripper Irrigation Direct
1 GPH Pressure Compensating Drip Irrigation Emitter - Button Dripper Irrigation Direct
From: $0.42
 
2 GPH Pressure Compensating Drip Irrigation  Emitter - Button Dripper Irrigation Direct
2 GPH Pressure Compensating Drip Irrigation Emitter - Button Dripper Irrigation Direct
From: $0.42
 
SPRINKLER SYSTEM INFORMATION

Sprinkler irrigation systems are commonly used in lawn irrigation systems and other planted areas where a spray or mist is desirable. For plants that require uniform coverage of water (grass, ground cover, seeds) a sprinkler irrigation system is appropriate.

If you are installing lawn sprinkler irrigation systems, Irrigation Direct carries a variety of supplies and parts like an adjustable nozzles for Rain Bird sprinkler heads. Our shrub adapters are perfect for garden sprinklers and shrub zones.

Combine pop-ups and rotors with electronic sprinkler controllers (timers), and inline valves to automate your landscape sprinkler irrigation system. Browse our Sprinkler System Supplies and Parts to find sprinkler nozzles, bubblers, swing assemblies, cut-off risers, Marlex 90s, and more.

DRIP IRRIGATION SYSTEM INFORMATIONz

Drip irrigation is a watering method which delivers water to plants slowly and right where they need it at the roots. Where typical pop-up sprinklers spray water into the air and onto plants, drip irrigation systems combine flexible poly drip tubing and drip emitters or "drippers" to both conserve water and save money.

Drip irrigation systems are not affected by wind and will greatly reduce evaporation and runoff common with traditional irrigation systems. Drip irrigation is the perfect solution for raised vegetable garden beds, hanging baskets, and potted plants.

Learn how to plan, design, and install your own Drip Irrigation System with our FREE online Drip Irrigation Tutorials.

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