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Your Teeth Will Thank You
on July 2, 2014
If you are a water-pik devotee, as I am, one day, in despair, you will notice that strange black moldy stuff is accumulating in your jet tip. Clearly this is not something you want to high-pressure squirt between your teeth. And it is impossible to clean. The openings on these puppies is incredibly small (which is why is makes such a nice high-pressure stream of water).
Solution? Throw the yucky moldy ones away and replace with these clean new ones.
Your teeth will thank you. (Mine did, and usually they are not very talkative.)