Concrete weep holes


A customer has a brick flower box 3x3' that does not drain water (no weep holes) Do I drill them through the mortar joint or brick? Do I need to insert PVC pipe to line the weep holes to prevent freeze damage? TIA
Scot
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You will need a tungsten carbide bit. It is easier to go through the mortar, as it is likely softer. I see no need for a piece of tubing myself. The key is the drain holes... make enough of them!
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professorpaul wrote:

yeah add garden hose to confirm it drains.the more holes the better, in mortar is fine although a couple thru the block is a good addition too, so the blocks cant fill with water and freeze, if your in a area that gets cold.
are you certain the bottom isnt open somehow?
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Always drill thorugh the mortar, not the brick: mortar can repaired easily, while a destroyed brick would need to be replaced entirely.
The PVC won't help so don't waste your time with it. Old time weep holes would be made with a simple length of cotton rope laid in the bottom of a mortar joint to wick out moisture: the cotton would eventually rot away but that wouldn't matter. Today, masons frequently leave one butt-joint completely free of mortar and put in a metal vent to keep out insects while allowing out water.
John
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