I washed bucket of wet drywall compound down my toilet. Will it clog the pipes?
What might be some possible solutions?
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Water-based joint compound can still settle and harden to a degree that it causes clogs, though that's somewhat unlikely given the amount of water in a toilet flush. I'd be running water for say half an hour at the best rate you can muster. It might help to fill a utility sink or bathtub (or several), then release that in a gush. Most of the compound will probably wash away and be diluted, preventing downstream issues.
If you have any indication that a blockage has occurred, you'll need to borrow, rent, or buy a suitable plumbing auger and run the pipes to dislodge the hardened material.