Exante drink powder, not disolving..

[Scarybush]

So I just added a teaspoon of the peach Exante drinks to a bottle of fizzy water.. and now I'm trying to drink around this clump of Peach flavoured powder and trying not to get a lump of it in my mouth..
Why is it not dissolving.
Stupid drink..

 

[DustQueen]

That sounds so odd :S surely it shouldn't do that!!!

 

[ExanteNewbie]

If I stir the powder into water it clumps but if I put the powder in the bottom of a glass and pour and stir at the same time it's fine. Peach is my favourite.