Locate the default gateway and IP address for your router on a Mac running any version of Mac OS X. Click the Apple Icon on the far left of the menu bar and select the system preferences option from the pull-down menu.ocate the default gateway and IP address for your router on a Mac running any version of Mac OS X. Click the Apple Icon on the far left of the menu bar and select the system preferences option from the pull-down menu.
Carbonated water has no calories, no dissolved sugar, no alcohol, and no caffeine. It hydrates, just like plain water does. Drinking seltzer, club soda, or sparkling mineral water will not leach calcium from your bones, strip the enamel off your teeth, or make your thighs look like cottage cheese. Unless you have a medical condition that specifically precludes drinking carbonated beverages, enjoy it if so inclined.
For reference, stomach acid has a pH of 2, and battery acid has a pH of 1. Normal, un-carbonated water has a neutral pH of 7, compared to 2.4 for orange juice and 2.5 for some colas. If seltzer is the only thing that brings joy to your life (and we won't judge) make sure to take great care of your teeth. Brush correctly, always floss, and make sure you're attending regular dental checkups.