Water may leak if the product was not properly installed. Ensure that it is tightly attached. If the rubber seal is broken, replace it immediately. You can buy a new rubber seal at any hardware store, or contact customer service.
Rubber seal (thick): Inner diameter 17.12 × thickness 2.62 EPDM 70°
Rubber seal (thin)(accessories): Inner diameter 17.8 × thickness 1.9 EPDM 70°