Do they freeze up? I live in Wisconsin and worry the residual water may freeze. Thanks

I have 3 of these (similar buried systems) all running down angle underground and yes they can freeze up (residual water at/around the pop up, “Colorado clay” stops up the little relief drain hole) although just 1 of the lines seems to show drain water backup up to the downspout during melt…anyway, for winter I pull off the 4” at the bottom of the downspouts and slip on another adapter and length of 4” downhill” that is just open at the end (Maybe there’s a better way? because yes we have 4” laying on top of ground level that can trip over etc.!

How does the water make its way to the discharge with a hole in the bottom ?

The hole in the bottom is so small that the vast majority the water will be emitted from the top. The hole only allows a small amount to drain, which is important after that heavy flow has stopped.

My down spout is rectangular is there a piece to connect with that shape on one end and circular on the other?

Correct. There is a rectangular piece that fits on the downspout. Then you need your hose to connect to the drainage

Anybody use this in cold weather climates. Does it freeze up?

No. Have had 2 of then for several years in NY state. Never a problem. However they are used as an overflo for a drain pipe. I have no idea what happens when they are under a foot of snow. IBut f there is running water they won't freeze.

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💧 Elevate your landscape game with smart drainage that works as hard as you do!

EROSION DEFENSE SYSTEM - Protects your landscape by channeling water away from vulnerable areas.
DURABLE PVC CONSTRUCTION - Built to last with weather-resistant, high-quality polyvinyl chloride material.
EFFORTLESS WATER MANAGEMENT - Pop-up emitter opens under pressure and closes to regulate flow, preventing overflow.
LAWN FRIENDLY POP UP DESIGN - Sits low enough to avoid disrupting your mower’s path—seamless lawn integration.
PRECISION 4 INCH FLOW CONTROL - Engineered for maximum drainage efficiency with a 4-inch internal diameter.

The National Diversified 422 4-Inch Pop-Up Drainage Emitter by NDS is a durable PVC drainage solution designed to efficiently manage water flow with a 4-inch internal diameter. Its pop-up design ensures it remains flush with your lawn, preventing mower interference while reducing erosion by directing water away from sensitive areas. Ideal for professional-grade landscape drainage, it combines functionality with low-maintenance durability.

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Brand	NDS
Model Number	422G
Product Dimensions	17.15 x 17.15 x 15.24 cm; 317.51 g
Material	Polyvinyl Chloride
Quantity	1
Are Batteries Included	No
Usage	エルボ
Item Weight	318 g

National Diversified 422 4-Inch Pop-Up Drainage Emitter by NDS

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