MAKE your OWN LIQUID PLUMBER: ½c Borax poured down your drain will unclog it when you follow w/couple cups boiling water. Leave At Least 15mins.Next run tap water untilall flushed out.Helps break down gunk/stuff that gets stuck in drain; boiling water helps flush it away.It also cleans/disinfects &amp; smells better.Much cheaper &amp; works as well as best drain cleaners on  market.Also keeps garbage disposal clean &amp; disinfected while keeping from clogging.