Unclogging drains is important when there is something blocking those drains from properly draining sicks and toilets. Let's start with how to unclog your toilet.
A clogged toilet can be an intimidating situation and at times it takes a hearty do-it-yourselfer to keep from calling in a plumber. Unclogging a toilet can be easy, but not fun. Use a "fluted" or funnel plunger designed to seal inside a toilet bowl. Extend the fluted flap of the plunger, fit it tightly inside bowl drain to form a good seal.
plung up and down several times and quickly break the seal. Repeat this a few times to work the clog back and forth which will free it and allow it to drain. If the clog remains, insert a closet auger into the bowl. Position the bent end of the auger into the bowl's trap and fish the rod through until it hits the clog.
Crank the auger's handle clockwise and push it into the clog a bit more. Once the clog is "hooked" with the spiral tip pull the auger back and forth. Repeat these steps until the clog drains. Avoid flushing the toilet. It may still be clogged and backup. Instead, fill the bowl with a bucket. If the water level does not go down, the clog is still there and you need to continue your efforts.
Hair can often clog a bathroom sink and food waste will plug up the kitchen sink. regardless of the obstruction, getting it unclogged for both are done the same way. Place a plunger over the clogged. Add enough water to cover the plunger lip and form a seal. plung straight up and down several times. repeat this a few times until the clog breaks free.
If the clog does not break free, postion a bucket under the sink trap. unscrew each end of the trap and drain the water into the bucket. Clean out the debris in the trap. If there is no debris in the trap then the clog is lower in the drain system like the main waste line.
A clog in the main waste line will need to be cleared with the use of a sewer snake.