<human>:  How to fix a clogged drain?
<bot>: There are a few steps you can take to fix a clogged drain. First, make sure the sink or tub is empty. Then check to make sure there is nothing obvious blocking the drain. If so, remove it. Next, use a plunger to try to clear the clog. If that doesn't work, use a chemical drain cleaner according to the directions on the package. If this doesn't work, try using a plumbing snake. Place the auger into the drain and turn the device to try to break the clog. You may also need to use a sink auger to access tougher clogs. Finally, if all else fails, call a professional plumber.