The tap water pipe runs through the front door of the house-does it have an impact on Feng Shui?

This is sheer nonsense. In the past, Feng Shui said that the gate could not face the running water, saying that the wealth flow was gone. However, some people say that if the river flows in the direction of home, it will bring wealth to the home, which is good feng shui.

If you insist on this reference, then if your tap water pipe comes in from the gate, it is still good feng shui. Because tap water brings wealth to your family.