NDS Pop Up Emitter pipe drain cover

VID 20170606 085527544 NDS Pop Up Emitter pipe drain cover - This video is about a 90° elbow pipe that's 4" diameter, and it's used at the end of a 4 inch corrugated water drain pipe that's being used for a yard drain drainage project. At the end of the pipe, this pop-up emitter cap is used to keep the pipe closed, but when it rains and the pipe fills up with water, the top of the cover will pop up and open just slightly, allowing the water to exit the pipe and run down the little hill embankment and out onto the sidewalk and away from the yard. It's really neat! Purchased at the Home Depot, the cost is about $20.

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