Toss the thinly sliced cucumber with 1 teaspoon of salt. Cover and put in fridge for 30 minutes. After 30 minutes, drain excess liquid. Combine vinegar, sugar, salt, & pepper - pour over cukes. Add chopped dill & mix to dist. evenly. Cover & return to fridge. When ready to eat, xfer to bowl w/ slotted spoon & garnish w/ dill sprigs