Why is my toilet and sink blocked?
Besides, are the toilet and sink connected?
Instead, plumbers connect drain lines in the floor beneath the bathroom and install a common vent that allows water and waste to drain without forming an airlock. The toilet has the largest drainpipe, so the sink drain, which is smaller in diameter, will empty into the toilet drain line.
Correspondingly, how do you unclog a toilet when a plunger won't work?
Plunger Alternative: Try This Mixture As an alternative to using dish soap and no plunger, try this all-natural solution: Pour 1 cup baking soda and 2 cups vinegar into the toilet. Allow it fizz for a half hour. If clog doesn't dissipate, try the hot water trick.
If your toilets, kitchen sink and tub or shower are all backed up, you probably have a clogged sewer line. When you flush the toilet, water backs up into or comes up in the tub or shower. When your sewer line is clogged, the water can't go down the drain.