Using regular water instead of deionized (DI) water for electrodeposition generally won't cause significant issues unless the water is heavily contaminated with metals. While regular water may introduce some impurities like chlorine and hardness, these are unlikely to drastically affect the process. However, using regular water can lead to less precise control over conditions, which is crucial in sensitive applications. The impact of using regular water varies depending on the specific requirements of the electrodeposition recipe, making it important to assess each situation individually.