Once the flood test is verified by the relevant inspector or installer, slowly drain the water while ensuring no damage occurs to the drain assembly. Carefully document the test results. Allow the entire assembly to dry completely before applying any thinset or mortar for the tile installation. If any leaks are detected during the test, the plumbing must be corrected and the flood test must be repeated until a perfect seal is confirmed, as waterproofing failures are costly to repair later.
Ask an ExpertInstallation and Preparation
What steps follow the completion of a shower pan flood test?
After a successful 24-hour flood test confirms the shower pan is watertight, the water must be drained and the area thoroughly inspected and dried. Once the pan is confirmed leak-free, the plumber or installer can proceed with the installation of the mortar bed and wall backer boards.