Chapin 41004 Mechanical Water Timer Review: Simple, Battery-Free Watering Control for Gardens and LawnsAutomatic watering does not have to involve WiFi, apps, batteries, or complicated programming. For many lawns and gardens, the real problem is much simpler: you want to turn the water on, walk away, and know that it will shut off automatically before you forget about it.The Chapin 41004 mechanic…