When did the taps that have water in them get invented?

Your question seems to be based on a misunderstanding. Taps, also known as faucets, have existed for centuries and weren't invented to store water. They control the flow of water from pipes to sinks, bathtubs, or other fixtures. The concept of storing water in containers or reservoirs has been an integral part of civilizations for thousands of years, with various civilizations developing different storage methods.