Just giving her water doesn't flush out all the excess nutes and all the salts that have accumulated and she's telling you she's still got too much shit in her soil! You've got to do a HARD flush... that means running 3 gallons of ph'd water through her for every gallon of pot size.... so if you're growing in a 3 gallon pot, you need to run 9 gallons of ph'd water through her.... the water should be ph'd to between 6.0 and 6.5 - and I'd do it like NOW... Add 1/2 strength nutes to the final gallon of water and then let her dry out before giving her anything else...
Good luck...