I have a few pet peeves from this line of work. And one of my favorite is when I go on a sales presentation and a prosepctive client goes over all the details of their project and they tell me "and when we bury this downspout we'll need a pop-up emitter at the end of the pipe". And I respond "oh, why do you want a pop-up?" They respond "because they guy that was here 2 days ago said we need one"!! And this is when I need to pause my presentation and spend 15 minutes going over my thoughts on pop ups! (Let me back up here. For the disclaimer, we are in MD. We have winter. We have snow. We have ice. We have frozen ground. ) Pop-ups - the quick, easy solution for those that DON'T know how handle a drainage issue! Pop-ups - an inexpensive cost alternative to appease the customer so they think you have a grasp on how to handle their drainage issue, without having to resort to more costy measures to properly contend with the issue! Folks - I've been waiting for an opportunity to snap a photo of the ground covered in ice to convince prospective clients that pop ups and NOT what they need. Here is a picture I shot the other week to include in my arsenol of photograghs. In the pic, you can tell there is ice ontop of the ground, right? But really, it was a warm day out, snow was melting off the roofs. Folks, tell me how on earth a pop up emitter is supposed to function WHEN IT'S BURRIED BELOW A SOLID SHEET OF ICE!! .