"Did you drink water" slider on Android app hard to use

Melissa
On the Android app it's hard to enter glasses of water accurately using the slider control. The slider doesn't settle into logical increments (e.g. 2, 3, 4). Instead you can move the slider to any in-between place and you have to hope you're close enough to the number you want. I have to save my info and then check to see if the number logged was correct; it's often off by one. Please change this control to have the slider click into place at 1, 2, 3, etc. Or, change the control to a drop-down or a text entry. I want to be able to enter this info quickly and accurately. Thanks!