What depth of water is required for the shower liner test?

The correct depth of water required for the shower liner test is 2 inches. This specific requirement is established to ensure that the shower pan or liner is tested for its ability to retain water and prevent leaks before proceeding with the installation of the finish materials.

By filling the shower liner with 2 inches of water, it allows for sufficient pressure to test the integrity of the liner and its seams. This depth simulates typical conditions that the shower pan will face when in use, providing a reliable indication of whether the liner has been installed correctly and will function properly over time. It is essential for maintaining the waterproofing of the shower area and preventing potential water damage to the underlying structures.

Testing at this depth ensures that any minor imperfections or areas that may not be sealed properly are identified before the shower is completed, thereby contributing to a more durable and leak-free installation.