Is it really a custom for Shanwei people in Guangdong to sacrifice with tap water?

As far as I know, there is no custom of offering sacrifices with tap water in Shanwei, Guangdong. Sacrifice is an important ceremony in China's traditional culture, which usually involves specific sacrifice places and ritual procedures.

In different regions and cultures, the ways of offering sacrifices may be different. In some places, water may be used for sacrifices, but in general, clear springs, rivers or specific holy water sources are used instead of tap water.

However, the customs and traditions of different regions and individuals may be different. If you hear about the custom of offering sacrifices with tap water in Shanwei, it may be because individuals or families choose this way, but this does not mean that it is a universal custom.

If you are interested in the specific customs of Shanwei, I suggest you consult local residents or learn more about local culture and traditions. They can provide more accurate and specific information to help you understand local customs.