Do you need a simple, really cheap way to unclog sluggish drains? You only need three things, and you probably have them in your kitchen. To free up sluggish drains, simply mix one-half cup each of salt, baking soda and vinegar, and pour it down the drain. Follow this with two quarts of boiling water, and you will not only save money – and your plumbing – by using a natural solution instead of harsh chemicals