Hello, we are sorry to hear about the difficulty you experienced with the SharkBite 3/4 in. Tankless Water Heater Valves Installation Kit and we understand your frustration. We would be happy to work with you to ensure you are 100% satisfied with any SharkBite product, and we understand your frustration with the outcome. We encourage you to contact our Customer Service Team at 1-877-700-4242 so we can learn more about your installation and help troubleshoot.