The Danger of Drilling Blindly
Hitting a concealed PVC water pipe will cause an immediate flood in your house, while hitting an electrical conduit can cause a severe power trip and fire hazard.
How to Locate Hidden Pipes
In HDB bathrooms and kitchens, water pipes usually run vertically directly from the ceiling to the sink or shower mixer. Never drill directly above or below a water outlet!
Use a Stud & Wire Detector
Invest in a reliable wall scanner that detects live AC wires and metal pipes. Always scan the intended drilling spot in an X-pattern before making the first hole.