About Gravity Feed Drip Irrigation Systems
Drip irrigation systems are designed for use with constant pressure of 15 - 30 psi. Since the pressure with a gravity feed drip irrigation system is often well below this range, and drops as the gravity feed system operates, drip emitter flow rates will be substantially less than those specified for the individual emitter. Output will also vary between drip emitters on the same line of drip tubing as they are placed farther away from the water source. We have done extensive testing with our gravity feed drip irrigation kits in multiple configurations in order to provide you with the best recommendations. Our goal is to help you build a gravity-feed drip irrigation system with the most consistent drip emitter output. Please read the detailed instruction guide before planning and installing your gravity feed drip irrigation system*.
Gravity Feed Drip Irrigation kit for Vegetable Garden Instructions
Gravity Feed Drip Irrigation kits for Clean Water Instructions
Gravity Feed Drip Irrigation kits for Dirty Water Instructions
Irrigation Direct's Gravity Feed Drip Irrigation kits contains everything you will need to build a gravity feed drip irrigation system. A rain barrel bulkhead fitting is included to turn a garbage can, bucket, or barrel into a rain barrel. The number of plants that can be watered with each gravity feed drip irrigation kit is an estimate based on the total number of drip emitters provided in the gravity feed drip irrigation kit. Larger plants should get at least two drip emitters (drippers).
When installing a rain barrel, measure the height of the barrel above the planted area. You gain .433 psi for each foot of elevation. For example, if you fill a 2 foot garbage can (or rain barrel) with water and elevate it 3 feet above your landscape, you gain 2.165 psi of pressure. But as the water level drops in the barrel, so does the pressure. The output of the drippers will drop as the water level drops. With good planning and our gravity feed drip irrigation system guidelines, you can build a gravity-feed system for watering plants with a container on grade or just a few feet off the ground.
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