Each time you use tap water, think about them, and be thankful.
But saving water in a country where there is no lack of it, like Canada, is not giving magically water to people who don’t have enough, like in some African dry areas. Enjoy using it if your area has plenty without any guilt feeling! These “politically correct ” people who try to make others feel guilty are poison and should start loving themselves more. Immediately after reading this, I went to take the best big hot bath of my life being thankful to live in a country without a water problem!