Looking for where to find Grimer or Muk. I am currently missing a Muk and a Weezing from gen 1. I am walking to get my Weezing and because I have at least two of them, I am fine with that. However, I have been travelling and walking for the past week and a half with not one single sighting. In fact, I haven't seen one since the one I caught on 7/30/16.