Whether to consume heated water from a household’s faucet raises valid concerns about potential health risks. The primary concern revolves around the composition of the plumbing infrastructure and the potential for contaminants to leach into the water supply as it sits within the hot water system.
Historically, lead was a common material used in plumbing. Although its use has been largely phased out, older homes may still possess lead pipes or lead solder. Hot water is more corrosive than cold water, increasing the likelihood of lead dissolving into the water. Additionally, hot water tanks can harbor sediment and bacteria, further impacting water quality. Therefore, the temperature and residence time of water within a hot water system are significant factors influencing its safety for consumption.