Key Takeaways A UV water purification system uses ultraviolet light to kill or inactivate bacteria, viruses, and protozoa in water. It provides a specific UV dose in millijoules per square centimeter to damage microbe DNA

Key Takeaways Drinking water is often polluted with common contaminants such as lead, nitrates, and bacteria. Home test kits and lab analyses provide varying levels of accuracy and price, with kits good for fast screens

Key Takeaways What is an expansion tank on a water heater? It stresses pipes, valves, and the heater less by containing surplus water and maintaining system pressure. Most tanks have an air bladder that cushions

Key Takeaways Why is my circulator pump making noise? Frequent culprits are entrapped air, loose fittings, worn bearings, and scale deposits in pipes or impellers. Noisy pumps can reduce efficiency and shorten pump life, and

Key Takeaways How to reduce heat in an old home is a solid series of action steps to reduce your energy consumption and your energy bills. Easy do-it-yourself fixes — sealing drafts, adding insulation and