Hi, I’ve been dog sitting for a month and since I had no prior experience with grass urine spots, I’m not sure how I know if these spots need to be repaired or they will bounce back? He only used these spots once so it seems strange the grass would die from it, but could be that’s how it works. I’m in zone 6b NJ and the grass is pretty much still dormant. The grass mix is Scott’s sun and shade which is All Purpose Mix Of Kentucky Bluegrass, Perennial Ryegrass & Fescue. Any advice? I tried pulling on the spots and the grass is very firmly attached to the ground but maybe bc the ground is possibly still frozen?