Place a strainer over kitchen and bathroom drains if they do not already have one; this will prevent hair, pieces of soap, and other debris from clogging drains. Clean the strainer as needed.
Unclog a drain mechanically rather than chemically when possible.
Use chemical drain cleaners sparingly, especially if your pipes or traps are brass, steel, or cast-iron; some chemicals may corrode metal pipes. Try this instead: pour a cup of baking soda followed by a cup of vinegar down your drain every month.
The drains in showers and in bathroom sinks typically need extra care; pour two or three gallons of boiling water down each bathroom drain about once a month to clear out hair and greasy particles.
Every week or two remove sink and tub pop-up stoppers and rinse them off.
Every three or four months remove the overflow plate on the tub.
Then pull up the pop-up assembly to reach the spring or rocker arm.
Remove accumulated hair and rinse thoroughly.
If your shower drain is plugged up:
Try a plunger first.
If the plunger doesn’t unplug the drain, insert a plumber’s helper (“snake”) down the drain.
Prevent drain clogs by putting a lint trap on your washing machine discharge hose.