Is there any support for the product? Yes, we offer a 12-month "Replacement Not Repair" Policy and 24/7 online customer support for every customer. If you have any questions, please feel free to reach out to us at sales(at)vimmk.com. What if the water tank is hard to open? -It is recommended to use a towel or rubber gloves to increase friction and rotate your hands in opposite directions to open the tank. -Designed with a safety catch that prevents leaks and is usually easier to open after a period of use. What should I do if the water flosser is leaking? 1. Do not overfill the water tank. 2. Empty the tank after each use. 3. For any quality issues, feel free to contact our support team at sales(at)vimmk.com. What should I do if the nozzle breaks and cannot be removed from the device? 1. Press and hold the nozzle switch. 2. Use scissors/other tools to remove the broken part. Where can I get more nozzles or a replacement water tank? -Please search for ASIN: B0D4QXD3LX to get 9 nozzles. -Please search for ASIN: B0D4QVPCMQ to get a water tank. VIMMK - Irrigador dental profesional para dientes VIMMK se dedica a elaborar productos con cuidado para ofrecer a los clientes una experiencia fresca de cuidado bucal Con nuestra gran experiencia profesional en cuidado bucal, nuestro objetivo es traer más sonrisas a ti y a tus seres queridos, enriqueciendo la vida con tonos vibrantes. ¡Cuente con VIMMK como su mejor socio en salud bucal!