DIY & Crafts ruling

Can grout and mortar go down the drain?

NO

It hardens, settles or coats. Your drain would prefer none of those verbs.

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Sink or drainNo
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Garbage disposalNo
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ToiletNo
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Septic systemNo

01

Why the pipe objects

These cementitious materials contain fine solids specifically designed to harden and bond.

02

Do this instead

Wipe tools before washing, collect the slurry and let it cure for disposal under local rules.

03

Already did it?

Stop running water; more water may carry the material deeper. Scoop or wipe up what remains and call a plumber if a meaningful amount entered the line.