Yeah it was the same brand, Tesco's and it was after the time limit so I am fearing evap! Once I'm dressed I'll go out and buy another brand. Welshcowgirl...how long did yours take to come up?
I also thought about doing an experiment with the Tesco's ones, just pouring some water on and see if after a while the same type of line comes up...am I going mad now??!! x