You’ve haven’t used those much then. Pumping water in the backcountry is a giant PITA. Even the clearest mountain stream ends up clogging the filters after a few liters and require you to back flush them. We despise using them and will often just boil unpurified water for our dinners.

Sawyer filters tend to be our favorite. Although if you only want to do a Nalgene amount of water and don’t mind some grit, then Steripens are a good option too.