 Plus more. To learn more about Quality Water Systems and what their customers are saying, visit drinkquality.com. It's easier than you think for pests to threaten your family's health. Ticks, which spread dangerous diseases, hide in tall grasses and even on your pets. Rodents easily invade your home, contaminate food, and can carry more than 35 diseases. Mosquitoes, which breed in standing water, transmit many diseases.