Getting a straight answer in this world anymore is next door to impossible: You can ring the doorbell for Fact all day and night, but, only Spin will come to the door.
The latest case in point: writing a corporation with a helpful suggestion, where everyone wins. You already know how this turns out, I'll bet. For the record, and to help flesh out your imaginations, some detail:
We live out in the country, in an area where our drinking water needs filtering from various muds and murk. We use the handy (but expensive-seeming, for our monthly budget) replaceable-cartridge water filters from PUR. (Short commercial: They do a pretty good job.)