Drainage hole

Drainage hole

A hole in a retaining wall; an open joint in masonry, to drain unwanted water.

drainage hole

An opening in a construction which permits unwanted water to drain away, e.g., from behind a retaining wall.
References in periodicals archive ?
STEP 4: Slip a 12-inch length of PVC pipe partway through the pot's drainage hole and grid to connect it to the pump; seal space between pipe and drain hole with epoxy putty.
A council report says: "There have been a number of incidents at the sKate PARK where the drainage hole has been blocKed up causing the bowl to fill with water and debris.
Step 2: Carefully make a drainage hole in bottom of eggshell.
It was suspected he had fallen down a drainage hole.
Ras Al Khaimah: Two Bangladeshi labourers have been hospitalised after they fell into a drainage hole they were assigned to clean.
Choose a pot that is about 1 inch larger in diameter than the plant and make sure it has a drainage hole.
1 Start with a thin-walled, nonporous pot (at least 12 inches wide and 16 inches high) that has no drainage hole but will be easy to drill into--like the plastic ones shown here (Skord planter, from $30; ikea.
In raising it off the ground take care to ensure the surface of the sink remains level and not tilted towards the drainage hole.
His second shot on the third attempt on 18 sailed through the green and nestled in a drainage hole, forcing him to take a drop.
She wedged a finger through a drainage hole in the bottom of her desk up to the knuckle, where it got stuck.