NDS 430 Pop-Up Drainage Emitter with Elbow and Adapter for 3 in. & 4 in. Drain Pipes, works with drainage systems including catch basins, Green Plastic

excellent

Same product as the big box home-improvement but better!!! This one has a spring in it that keeps the tension on the lid to return. This is also important cause lawn mowers will suck it up without it..

The units fit onto 4" corrugated just fine. One issue on one of them was that the top green piece is NOT attached to the upright pipe nor is it a tight friction fit...so water pressure could easily push it off.

This works great use the end that fits 3 inch corrgated drain pipe and has rained 3 different times since I installed and does exactly like it's suppose to

Optimize your drainage system with the NDS 430 Pop-Up Drainage Emitter. Designed for 3 in. & 4 in. drain pipes, this green plastic emitter, complete with elbow and adapter, enhances water flow in catch basins and drainage setups.

This was exactly what I was looking for. The actual elbow and pop-up top could be found everywhere, but the connector was the issue. So, I thought this was a decent deal. Once I got the product, I found that the pop-up green top was spring loaded! Do you know how much water pressure it would take to push the top up? A LOT! I had to go and buy another green pop-up top that was not spring loaded. That fixed that problem. The only other issue was that the connector piece didn't give a good connection with the corrugated 4" pipe. Very loose fit and looks like it would allow dirt to filter in and eventually clog the pipe.

It stopped popping up after a few rain storms.

Drain works great. Install was a bear cause the connection was the same size. Used a heat gun to "resize" for a good fit. Probably didn't buy enough parts but made it work. Round peg in a square hole will work with enough heat.

Works as expected - I installed this into an existing corrugated plastic pipe. It slid right in without issue. There is a weeping hole at the bottom, and it’s not a perfect water tight seal. It will absolutely leak / drain water into the ground while also emitting from the top.

Seems like an ok product. I unfortunately used the perforated Big O pipe with the sock and therefore there isn’t enough head pressure (short run) to actually open the valve, cause the water leaks out the perforations. But would purchase another if needed. No complaints

I dug up a DIY french drain and I needed the end bit for the water to exit and this is exactly what I needed. Now that I think about it, I never actually saw water come out from it, either I dug the drain wrong or it did not rain as hard for it to work. Either way, it serves its purpose.

100% as described.

Does the job it is meant to do and looks great! Definitely wouldn’t want to drive directly on them but that is a no brainer.