What flavour? Salt, sugar, citric acid, gin? L
Another possibility: Start with something that is almost clear, such as a weak lemonade, and run it through a coffee filter. You might lose some of the flavor, but you'd also remove most of the larger particles and get another step closer to clear.
I use lemon juice or lime juice in water. It's almost colourless. It might depend on the amount you use. Tastes good too.
i saw this show on MSNBC where this woman made millions on flavored water. All she did was cut up a bunch of fruit, soak it in the water and then strain it. she later bottled it up and sold it.i havent tried it in person.
Are you saying you want the water to remain uncolored?If so, one of the alcohol-based extracts used in baking -- lemon, for example -- would be one solution.