The gutter is rigid and will not be squeezed or compressed by the concrete. When you install the gutter, do so with the grate installed to ensure the gutter maintains is size so that you can remove the grate for cleaning. I installed the gutter with the stainless steel grate into a patio. I'd recommend applying painters tape over the grate in case you get cement on it.
By Gary Oscar
The ones I have you can slide the grate one way or the other and it should release so it can be lifted out. Hope this helps.
By Mike Stephens
Are use a flat head screwdriver. It was really hard to get them out broke a few outer edges. so I just used a grinder and smoothed out the tabs and put them in that way they went in real easy and out really easy.
By Augustine
I remove mine. It is a little work, but is ok.
By Webb Simpson