DIG Pressure Compensating (PC) Drip Emitters are designed to produce a consistent flow rate over a pressure range of 10 to 45 PSI. DIG PC drip emitters are continuously adjusting to varying water pressures, ensuring a constant flow from each drip emitter regardless of pressure fluctuations or varying elevations along the line. The PC drip emitters are available in 1, 2 and 4 GPH and includes models, B221B (1-GPH, pack of 10), B222B (2-GPH, pack of 10) and B224B (4-GPH, pack of 10). Used for shrubs groundcovers and trees, DIG PC drip emitters offer a convenient way to water both new and existing landscapes, including difficult terrain such as slopes, oddly shaped areas and sites with high winds.
|B221B||1 GPH Pressure Compensating (PC) Drip Emitters (pack of 10) ||Black|
|B222B||2 GPH Pressure Compensating (PC) Drip Emitters (pack of 10) ||Green|
|B224B||4 GPH Pressure Compensating (PC) Drip Emitters (pack of 10) ||Red|
The 1, 2 and 4 GPH PC Drip Emitters contain a silicon diaphragm that continuously adjusts to varying water pressures and at the same time allows particles to pass through the drip emitter’s water passage, providing reliable performance and a longer life. This method of flushing with a large flow path allows the drip emitters to operate at optimal flow rates under extreme conditions. These three models of PC Drip Emitters discharge the same amount of water under a pressure range of 10 to 45 PSI, allowing for higher uniformity and longer lateral run on any topography. This feature allows the number of drip emitters on a single drip tubing to be maximized while maintaining an even flow rate from each emitter along the line.
Install the drip emitters using one of two methods; either directly into the drip tubing, or at the end of the micro tubing. Within the layout, we highly suggest that a minimum of two drip emitters should be placed on opposite sides, under the plant canopy, centered between the plant trunk and the plant canopy edge.
When using single drip emitters, it is important to select the correct flow rate in order to achieve a wetted pattern shape that can cover at least 70% of the plant root zone. In sandy soil, water tends to drain quickly (gravitational force) with little lateral movement, so applying a higher flow rate over a given time period will produce a wider pattern. Using .5 GPH drip emitters for one hour will provide a smaller wetted area then using 1 GPH for the same time, due to the soil characteristics.
One of the most common installation errors in installing drip irrigation is using too few emitters. All too often only a single emitter with preset flow is placed at the base of a newly planted tree, shrub or rose. In clay soils, a single drip emitter can wet a three to four foot diameter; on sandy soils, the same layout using the same drip emitter will only wet an area of a few inches. Given the fact that plant roots can grow up to a few feet a year depending on the plant and location, after one year the diameter of the root system would be much larger than the area covered by the one drip emitter. A single drip emitter per tree or shrub could restrict root development as early as the first year after planting if flow is not adjusted or a drip emitter is not added. We highly recommend adding more than one drip emitter per plant, depending on plant size.
Basic installation recommendations for this product include first reviewing the area and then making a drawing of the garden or site with your preferred layout. If automation is required, use one of DIG’s hose end timers or battery operated controllers. The ideal controller should have flexible scheduling and two to four start times per day for added flexibility.
Recommendations: Wrap all male pipe thread fittings with Teflon tape. Do not use pipe cement on the valve as it will damage the valve and void the warranty.