http://www.waterfilters.net Aquaman demonstrates how to change a Sediment Water Filter Cartridge and offers some useful tips on general maintenance, including proper use of the spanner wrench, lubrication of the O-ring and housing threads, and proper cartridge changing procedure. Sediment filters are an easy and inexpensive way to improve the quality of your water as well as protect your expensive plumbing components from the damaging effects of sediment. Aquaman is a Water Quality Association Certified Water Specialist. His training and experience have given him a deep understanding of water chemistry and water purification equipment. This enables him to provide scientifically accurate information that you can trust!