As homeowners sue over leaking water pipes, judges have found arbitration agreements don't hold water. Uponor, which was acquired by Swiss industrial group Georg Fischer in 2023, denies wrongdoing and calls the allegations "false and unfounded". The company argues that plaintiffs must arbitrate under a provision in its warranty agreement directing disputes to the American Arbitration Association. However, federal judges in California, Oklahoma and Tennessee have ruled that Uponor’s arbitration clause is not binding. Plaintiffs argue that defective water pipes caused multiple leaks in their homes within a few years due to a faulty manufacturing process. They want Uponor to pay repair costs exceeding $50,000 per house. Most of the plaintiffs have not attempted to seek restitution under the warranty, instead suing for torts including product liability, negligence and fraudulent concealment.