Learn how to avoid a dry heat and dry throats when from This Old House plumbing expert Richard Trethewey, find out how to read your water meter to detect leaks, get advice on how to avoid freezing pipes, discover the best ways to clean mold yourself, find out how to get rid of a fireplace draft. Plus answers to your home improvement questions about removing plumbing fixtures, sweating windows, eliminating noise from heating system, fixing cracked walls, copper pipe leaks, cleaning tile grout, hot water heaters, sealing a fireplace and removing mold.