Safer Ringer Lawn Restore II 25lb bag will cover approx. 3000 Sq. feet. You would need approx. 5 bags to cover 15000 sq. feet.
You would want to keep the dog off the area treated with Safer Ringer Lawn Restore II until it has fully dried.Â
Safer Ringer Lawn Restore II will not lower pH at all. You would use something like Hi-Yield Soil Sulfur instead.