What are the side effects of drinking tap water?

The rusting of the pipe network,single cold water faucet joiner，single cold water faucet across the top，single cold water faucet top of sinkwater tanks and faucet filters that carry tap water, which are not maintained and cleaned for a long time, can easily lead to heavy metal contamination of the water. The heavy metals are metabolized and absorbed in the liver and kidneys, and drinking tap water for a long time can increase the burden on the liver and kidneys.single cold water faucet joiner，single cold water faucet across the top，single cold water faucet top of sink