Standing water on a tiled shower floor is a common sign of a drainage issue that should be addressed to prevent mold and grout deterioration. The most frequent cause is an incorrect floor slope; if the installation fails to meet the 1/4 inch per foot pitch requirement, water will not move effectively to the drain. This can happen if the subfloor was not prepared correctly or if the mortar bed (the mud pan) was not shaped accurately before the tile was set. Another possible cause is an incorrectly set drain height. If the drain flange is positioned too high relative to the surrounding tile, it acts as a dam, preventing water from reaching the weep holes or the drain opening itself. Additionally, even a well-sloped shower can experience standing water if the drain line is partially obstructed by hair, soap, or debris, which slows the rate of drainage. If you notice persistent pooling, first check the drain for clogs; if the drain is clear, the issue likely resides in the slope of the floor and may require professional correction by a qualified installer.
Key considerations
- standing water in shower
- why is there water in my shower
- fix standing water in shower
- drainage
- maintenance
- shower-floor