3" Pop-up, Sewer & Drain Plastic Drainage Emitter Weep hole at bottom of elbow drains out water left in pipes to prevent stagnation or freezing in cold weather Pop-Up Drainage Emitter is a part of a complete drainage system that help with stormwater management The Pop-Up Drainage Emitter with Elbow connects to 4 In Cover closes once flow diminishes and stays closed when not in use to prevent debris & rodents from entering and potentially clogging the drainage system Flat profile design blends discreetly into the surrounding landscape Use the Pop-Up Drainage Emitter to discharge water away from structures, erosion-prone landscapes, and poor drainage areas They work with pipes, catch basin drains, channel drains, trench drains, and drain grates to filter, capture, and convey excess water to drain pipes; the pipes carry the water downstream to discharge with a Pop-Up Emitter, or to percolate into the ground with a dry well or infiltration trench Cover is made of polyethylene; elbow is made of polyvinyl chloride sewer and drain pipe, and the cover pops up to release water when pressure builds Every drainage system needs a point of release to prevent back-up issues
