explain everything on Instagram: "A faucet works by controlling the flow of water through a simple valve mechanism. When you turn the handle or lift the lever, it moves an internal valve or cartridge that opens a pathway for water to flow from the supply pipe. The more you open the valve, the larger the opening becomes, allowing more water to pass through. Turning the handle back closes the valve, stopping the flow. Inside modern faucets, ceramic discs or rubber seals help regulate pressure and