Make sure it's the right one! This will discard it. To restore the default global hotkeys, click on the “Restore Defaults” button on the upper-right corner of the screen. This will delete any keyboard shortcuts you’ve added, together with the changes you’ve made with the others.

Summary: Click on the hotkey you want to delete. Click on the “Remove” button. Restore default settings.


This app is white and green with a white quotation mark on it. It's the speech bubble-shaped icon at the bottom of the screen, just left of the phone icon.  On Android, instead tap + in the bottom-right corner of the screen. If this is your first time opening Hangouts, you'll first tap GET STARTED and select each Google account you wish to use with Hangouts. If prompted, enter the email address and password for the Google account you wish to use before continuing. You'll see this option in the bottom-right corner of the screen. On Android, instead tap New video call near the white + button. This option is near the top of the screen. Skip this step on Android. Doing so will add them to the conference call group. If someone isn't in your contacts, you can still invite them to the video conference by typing their email address into the search field and tapping their name or email address when it appears below the search bar. It's in the top-right corner of the screen. Skip this step on Android. You'll see this video camera-shaped icon near the top-right corner of the screen. Tapping it will initiate a video call to all contacts in the group.

Summary: Open Google Hangouts. Tap the "Hangouts" tab. Tap +. Tap New group. Tap contacts' names. Tap the checkmark icon. Tap the video call icon.


Head to your home’s main circuit breaker and find the switch corresponding to the garbage disposal unit. Flip the switch to the “Off” position. You’ll now be able to work safely without worrying about accidentally receiving a nasty shock. Garbage disposals are electrical appliances, which means there’s a live current running through them at all time while the power is on. Open the doors beneath your sink and take a look directly under the drain. You should see a large cylindrical object situated between the bottom of the drain and the plumbing pipes. This is the actual garbage disposal unit that you’ll be replacing. Take note of the make and model of the disposal. Replacing it with a similar model will be as easy as removing the existing unit and screwing on the new one. Locate the pipe extending from the side of the disposal into the ground plumbing. Loosen any nuts or fasteners at the pipe’s connection site and give it a firm tug to pull it free.  The discharge tube is responsible for carrying ground food waste out of the disposal. Some older garbage disposals are also connected to the dishwasher water supply via a second tube. This one can be disconnected in the same manner. At the top of the unit you should see a thin metal ring with 3 separate lugs, or protruding arms. Take hold of these lugs with one hand and twist the entire ring counterclockwise about 1.5 inches (3.8 cm) to dislodge the old unit. Set it aside on a sheet of newspaper or unfolded rag to keep from making a mess.  Garbage disposals tend to be surprisingly heavy (some can weigh as much as 15 pounds!), so be ready to catch and hold the unit once it comes away from the mounting ring. It may be a good idea to place a couple paint cans, some wood scraps, or a stack of phone books beneath the disposal to act as a support platform. Turn the unit over and look for the round or square faceplate on the underside. This is the cover for the electrical housing. Unscrew the faceplate and slip the copper ground wire over the green screw. Then, pinch the plastic wire connectors to disconnect the colored wires from the main power supply. A pair of needle-nosed pliers may come in handy for releasing wire connectors that are too small to unclip by hand.

Summary: Turn off the power to the garbage disposal. Identify your garbage disposal. Disconnect the discharge tube. Release the old disposal from the mounting ring. Separate the disposal from the power supply.


You do not need to do a major cleaning unless the bowl has developed slime or grime you cannot scrub off, or if the water has become permanently cloudy. The more involved the cleaning is, and the more water you replace, the more stressed your fish will be. If the fish bowl is an adequate size for your betta fish, at least 3 gal. (6 L), you will only need to clean it this way once or twice a year. You'll be replacing about 50% of the water in the fish bowl. Use tap water treated with dechlorination tablets, freshly collected rainwater, or distilled water treated with aquarium salts. Check the water temperature to make sure it matches the water in the fish bowl. See the preparation section for more information on preparing aquarium water. Move roughly 50% of the water in the fish bowl to another container. Even if the water looks filthy, do not transfer your betta to a container of new water. The shock could kill it. Keeping the old water also insures that you will still have useful bacteria in your fish bowl, which will break down otherwise harmful chemicals produced by your fish's waste. Separate out any gravel, pebbles and decorations by pouring the water through a sieve standing on a bucket, or by scooping them out with a cup. Dump the remaining water into your garden or down a drain. If your bowl is too heavy to handle easily, use a siphon hose instead to transfer the water to a bucket in stages. Rinse all gravel, pebbles, and decorations once in a basin of hot water to remove as much grime as possible. Pour out the hot water and rinse a second time in cool or room temperature water. Rub them with your fingers or your dedicated aquarium sponge while rinsing the second time. If water and elbow grease alone won't remove the gunk on the fish bowl, wet a cloth with white vinegar and scrub the sides. Always thoroughly rinse the vinegar in room temperature water after the fish bowl is clean. Never use any soap, cleaning products, or any substance besides water or vinegar to clean your fish bowl. Return the gravel, pebbles, and/or decoration to the fish bowl. Pour in the newly prepared water. Pour in most of the old water, but leave enough in the temporary container for your betta to swim. Wait for the clouds and gravel to subside to the bottom if necessary. Because of the major changes to the bowl, introducing your fish slowly is recommended. Float the betta fish and the water it's been swimming in inside a small plastic bag, on top of the bowl water. After 15 minutes, pour a little of the bowl water into the bag. After 30 minutes, let the betta swim out of the bag into the rest of the bowl, and remove the bag.
Summary: Use this method only when absolutely necessary. Prepare a new container of water. Transfer half the water and the betta to another container. Empty the fish bowl. Rinse the contents twice. Scrub the fish bowl with vinegar if necessary. Set up the fish bowl again. Return the betta fish to its bowl.