Need Filtered Water

I am tired of buying bottled water, and also there is the problem of the plastic bottle waste. I know you cn recycle, but why buy them to begin with? I alternate between bottled water and drinking out of the tap. I hear our tap water is fine to drink, but who really knows? I would rathe try to find to filter some water 4396710. If I bought some kind of contraption to filter the water, it would save money on buying bottled water and buying it in plastic.