Urinating

• Dogs go outdoors to urinate, which protects your floors indoors from pet stains. However, a dog's urine has high salt and nitrogen levels that can damage grass if it raises the nitrogen level in the soil. If you fertilize your lawn regularly, it is possible that the dog urine will add too much nitrogen to the soil and cause the spots to turn brown as the grass dies from high nitrogen levels. This problem may more apparent with large dogs more so than with small dogs because large dogs have larger bladders to empty.