The water pressure in the shower is low. When you turn on the cold water from the kitchen or bathroom faucet, but immediately feel the hot water or hot water flowing from the Hot And Cold Faucet, you will naturally be confused. If you encounter this situation, here are some potential causes and what to do next.

Reason 1: Close to the pipeline
Pipes usually need to be installed in narrow places. Therefore, it is normal for the hot and cold water lines to be parallel and close to each other on the way to the faucet. However, if they are too close, the heat of the hot water pipe may affect the cold water pipe.

Reason 2: Heat transfer in ventilation ducts
If the forced air heating system is running, the metal surface of the ventilation duct may feel hot to the touch. If your cold water pipeline touches or is close to the piping system, some of the heat may be transferred to the water pipeline.

Reason 3: The thermostat cannot work normally
If you have a water storage tank, the thermostat in the immersion heater may malfunction or even break. This may cause the water to overheat and flow into the cold water pipe.

Reason 4: The heating effect of copper
Copper has a high thermal conductivity, which means that heat can easily pass through copper. If you use hot water in the faucet and have copper pipes, the pipes may heat the entire faucet for a period of time.

How to solve the problem
In some cases, the temporary flow of warm water from the cold tap may not be a serious problem. However, if the problem recurs or persists for a long time, it may be dangerous if someone turns on the faucet and gets scalded by unexpected hot water.

It is best to have a professional plumber to understand the situation. The solution may be simple, such as insulating the pipes to limit heat transfer. Or, some of your pipelines may need to be redesigned to solve the problem and ensure safety.