Yes the original pickup impeller housing plastic was of dubious quality and falls apart when submerged in conventional screen washing fluid. I have no idea if the replacements are any better. The PO of my car tried to stabilize it by globbing epoxy all over the outside of it. It worked but was ugly. A better solution might be to remove it and let it sit. Hopefully it firms up. If you can figure out how to then split it open at the seam, you could 3d print a replacement. I found a NOS one years ago and simply never fill it.