Yes, that's pretty much the standard approach and the one I've used since 2009, except for the UV light I've never been fond of.
I've replaced it by a more "heretic water science" type of device, which aims to restore a better "water structure" or energy. (call it the way you want, really. Most people will poopoo this. I've experimented enough with this sort of technologies to say that beyond all the scam, there are very interesting and useful things. As esoteric as it may sound https://www.grander.com/ are selling valuable products
