Quote Originally Posted by Mike41793 View Post
Do you replace those plastic ones every week deborah? Or are they washable?

I get how they work, im just curious how they last.
No I don't dispose of them weekly I wash them several times before disposing of them (Bleached them too), they are easy to carry easy to clean and can be used several time.

I put a new cup in while taking the other out to clean them and then back in service.