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In areas with a limited water supply, above-surface and sub-surface drip irrigation has made it possible to get the most out of the water available. Sub-surface drip tape can be installed 4”-14” deep, depending on the crop, using 8 to 15 mil drip tapes. A longer season or a more permanent application will require a thicker wall drip tape (12-15 mil), and a short season will required a thinner drip tape (8-10 mil).
The flow rate for a drip tape can be as low as .12 to 2 GPM per 100 feet at 10 PSI, depending on model and brand used. It may be used above or below the ground with a maximum working pressure of around 25 PSI. When using drip tape, it is highly recommended that a pressure regulator and a filter be used for each drip tape zone.
The Drip Store’s 5/8” drip tape is available in 100’, 500' and in larger coils. The 100’ and 500' are 15 mil wall thickness with 12" drip emitter spacing. The larger coils are available in 8, 10, 12 and15 mil wall thickness with 8” and 12" drip emitter spacing (special order). Drip tape is a flat tape with drip emitters pre-inserted in a predetermined spacing of 8" to 12". The drip tape expands when filled with water and disperses the water through the pre-inserted drip emitters. The drip tape is ideal for crops or sites where total saturation coverage is desired along the drip tape path.
A drip irrigation system must use a filter for maximum effectiveness, and the type and quality of water being used determines which filter to select. Fertilizer injectors can also be added, to deliver fertilizer directly to the plant roots. A fertilizer injector is installed before the filter and can be used to inject some types of liquid fertilizers or mixes, pesticides and herbicides, as well as products to clean the drip system. This will add to the efficiency of the irrigation system.
When designing a drip irrigation system using drip tape please be aware that drip tape work at very low pressure of 12 to 25 PSI. Make sure to install a 15 or 20 PSI pressure regulator to each zone.
Suggestion in installing a drip tape system, first identify the number of similar irrigation zones needed. Irrigation zones are based on factors such as type of crop, total flow available in a given time (see drip tape flow rate and spacing), available pressure at the zone, available pressure for periodic flushing, topography layout, field length and soil texture. Once the zones are assigned and the drip system is designed, a schedule of irrigation must be set up to meet the unique needs of the crop in each zone. A properly designed and installed drip system will provide better uniformity for many years and can improve crop production
Recommendation: To install the drip tape fittings, turn the sleeve on the fitting counter-clockwise, insert and push the drip tape over the barb, and secure by turning the sleeve clockwise to go over the drip tape, ensuring a quality watertight connection.
A Cv value of +/-2% allows for higher operating pressures, offering unmatched uniformity, performance and reliability for your crops
Allows use of smaller water sources; drip irrigation may require less than half of the water needed for sprinkler irrigation
Available in 10, 12 and 15 mil to offer maximum flexibility for a variety of crops
Flexible tubing for easy installation
Lower operating pressure of a drip tape means reduced energy needs
Resistant to chemicals and fertilizers commonly used in landscaping
The turbulent flow through a large labyrinth water passage helps reduce clogging
Turbulent flow through a large labyrinth water passage helps reduce clogging
Used for above or below grade installation
Using drip tape below surface allows for field operations such as harvesting continuing during irrigation time because the areas between the rows remain dry, resulting in better weed control and lower production costs.
Using drip tape, high levels of water management can be achieved because plants are supplied with precise amounts of water