Water at exactly 0... but still water problem?

[simtom1500 0]

Hey! I have been playing Simcity 2013 for almost a year now and have been really enjoying the game. There is this one annoying problem that has been bothering me for a while. I had a tourism city called Windy Town that was buying water from its neighbor, Shape City. We had no excess water, so the water number was at 0. Not a deficit and no extra water; perfect, right? Not! My water icon would be yellow even though I have just enough to run the city. Placing more water towers in Windy Town didn't work. Is this a bug, or do I have polluted water that it isn't telling me about?

[zacnlinc 4]

I've been playing this game for about 2 years myself and just as recent as last month I discovered something "new".   If you hover the pointer over the gauges for the meters, you will get some useful information related to what the gauge is displaying.  Maybe you're not generating enough water in Windy City that registers enough to move the gauge closer to the green area of the gauge.  You might have to cycle through your cities to have the game update itself before the effects of the new water source(s) are registered.

Good Luck!!