In this DIY guide, we'll show you how to repair a 4-inch underground pipe in just 5 easy steps. Whether you're dealing with a leak or a burst pipe, our step-by-step instructions will help you fix the problem quickly and efficiently. We'll cover everything from identifying the source of the problem to digging up the pipe and making the necessary repairs. With our expert guidance, you'll be able to tackle this project with confidence and get your plumbing back in working order in no time.