Hi Sarah,

A minor correction: turf dying from dog urine has less to do with soil pH and more to do with the excess deposition of nitrogen and salts. 

There are ways to remedy that, but the first step is to ensure that the dogs don't have access to that area anymore, or to train them not to continue urinating in the affected areas. 

You should try to make your dog consume more water so that the salts/nitrogen in their urine are more diluted. Besides ensuring that their water bowl is always full, there are supplements that can be added to their food which cause dogs to imbibe more water (e.g. tomato juice, garlic, etc.). However, consult a vet before doing so. These supplements can cause issues for older dogs and those with heart/kidney issues. 

As for the affected areas, increasing the amount/frequency of irrigation can help to leach the salts out of the soil and help any still-living turf recover. If the turf is completely dead, you should remove it along with 0.5-1 inch of soil, then re-sod the area or plant seed. If you know what kind of grass you already have (most people don't know), I can recommend turf seed that will maintain the turf uniformity (meaning that when it grows, it won't look too different from the turf already there). 

Let me know if you have further questions!

No problem. As aforementioned, turf dying from dog urine has less to do with soil pH and more to do with the excess deposition of nitrogen and salts. It is a myth that lime can remedy the issue. 

The same practices apply to planting beds.