It's true that in the past, weeping willows have been a problem for homeowners.
Their roots are known for winding their way into pipes and causing damage to plumbing. That was especially true of older sewer, septic, and plumbing systems.
With newer sewage and plumbing systems more commonly using less leaky PVC pipes, willows are not quite the problem they used to be. It's still wise to consider their placement, but they are a gorgeous addition to many areas. Find them in our plant nursery.
Source of Information on Landscaping with Weeping Willows