Yes, you can drink the tap water in Singapore. The water is rigorously treated and tested daily by Singapore's national water agency PUB and complies with both local regulations and guidelines set by the World Health Organization (WHO) for safe drinking water. In fact, Singapore's tap water is considered among the cleanest in the world and does not require any additional filtration or treatment at the point of use. While potential contamination may occur in aging pipes within some older buildings, the water leaving the treatment plants is very safe. Some people may notice a chlorine taste, but this is part of the disinfection process. Overall, it is safe for locals and visitors to drink tap water in Singapore without concern.