There is a gap between my ADB and the floor or threshold. How do I adjust this?
To adjust the drop of the ADB, the unit must be properly installed on the door.
After installation, open the door, turn adjusting brass nut counter-clockwise a half turn.
Close the door and check the ADB for a proper seal.
Repeat these steps until a proper seal is achieved.
Do not over-adjust. In other words, back out the adjusting nut to the minimum needed to minimize force for the application.
My floor is uneven and not allowing for a proper seal. What can I do to ensure a proper seal?
Zero ADBs can accommodate slight variations in the sealing surface. However, larger variations in the
floor surface can not be overcome by the ADB. A threshold may need to be properly installed to give a
flat surface to seal against.
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