Clamping Ring Sub-Drain Weep Holes

Category: infrastructure

Small, integrated channels inside a primary shower drain assembly that allow subsurface water to drain away.

Shower floor tiles and cement mortar beds are inherently porous; water naturally migrates downward through them. When moisture hits the impervious shower pan liner, it flows down the slope to the base of the drain, where it enters the sub-drain clamping ring through tiny weep holes, preventing stagnant water stagnation.

Common Examples

• The tile setter placed small pieces of crushed pea gravel around the clamping ring to prevent mortar from choking the sub-drain weep holes.
• A foul, musty odor emitting from a cured shower floor usually indicates that the sub-drain weep holes have become clogged with slime.