I ran over a customers pop-up emitter early summer, then I just ran it over again while mulching leaves. I knew it was there so I lifted the mower up a bit, I guess the suction pulled it up just enough to hit the blades. I bought just the green pop up part at Home Depot after the first time, now they won't just sell that, it only comes with the elbow for $10. I checked other hardware stores and they are the same. Does anyone know where I can find just the top part and not the pvc elbow?