Beginners can regularly check taps, toilets, visible pipes and the hot-water system for drips, dampness, corrosion or unusual noises. Learn where the main water shut-off valve is, and clear sink strainers without using harsh chemicals that may damage pipes. Avoid flushing wipes, grease or sanitary products, and test water-efficient tap and toilet fittings for leaks. For gas work, major leaks, blocked sewer lines or repairs involving concealed pipes, contact a licensed plumber rather than attempting the job yourself.