This Old House landscape contractor Roger Cook helps a homeowner solve a driveway drainage dilemma. (See below for a shopping list, tools, and steps.) SUBSCRIBE to This Old House: http://bit.ly/SubscribeThisOldHouse Shopping List for How to Install a Channel Drain: - 4-inch channel drain [https://amzn.to/2ZTvUCk], to collect excess water - End cap [https://amzn.to/2WghCty] and offset outlet…