Description

NDS 4″ Pop-Up Drain Spring-Loaded – NDS421

Every drainage system needs a point of release for collected water. With the Pop-Up Drainage Emitter, water is discharged safely when installed away from structures, erosion-prone landscapes, and poor drainage areas. The spring-loaded cap pops up to 1 in. high when water pressure builds to allow water to be dispersed at up to 56 GPM, then automatically retracts once the flow diminishes. Cap stays closed when not in use to prevent debris and rodents from entering and potentially clogging the drainage system. Weep hole at bottom of elbow drains out water left in pipes to prevent stagnation or freezing in cold weather. The Pop-Up Emitter with Elbow connects to 4 in. sewer and drain pipe and 4 in. triple-wall pipe for a soil-tight. fit. Cap and cover made of high-density polyethylene (HDPE); elbow is made of polyvinyl chloride (PVC)

• Spring-loaded cap on cover pops up as high as 1 in. once water pressure builds and closes as flow diminishes; when not in use, cap stays closed to keep debris and rodents out of drain
• Flange design prevents grass from growing over the cover
• Small weep hole in elbow drains out any water in the pipe to prevent stagnation or freezing in cold weather