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A ground wire is not required for GFCI to work. A ground is a third wire in an outlet in addition to the live and neutral wires. It serves as an escape conduit for electricity in case of a short circuit. If a ground wire is present, installers should connect it to the appropriate terminal. Otherwise, a GFCI will work fine without it.

Yes, you can connect two extra outlets (or more) to one outlet if the total load on the circuit allows for it. If you have a 15-amp circuit, electrical code allows up to eight outlets or light switches. But if you’re dealing with outlets in the kitchen and bathroom, you may not be able to have as many. Kitchen and bathroom appliances often need higher amperage. You can also change a single outlet to a double outlet by cutting a larger hole in the drywall and replacing the outlet with a quad receptacle.

Several signs can indicate a light switch is bad. If the switch feels loose, slides down after you flip it, or requires multiple flicks to turn the light on, it may be failing. Other common indicators include flickering lights or a general failure to turn the light on or off. Pay attention to any unusual sounds, such as crackling, buzzing, or popping when you operate the switch. More serious signs, which can present a fire or shock hazard, include the switch feeling excessively warm or hot, sparking, smoking, or emitting a burning smell. If you notice any of these dangerous signs, stop using the switch immediately and call an electrician.

Moving an electrical meter in your home depends on what your electric utility company allows. If you only want to move it a few inches, that may be no problem or only incur light fees. If you want to move it a significant distance, you may need to arrange a utility inspection and get permission, or your utility company may prevent it altogether.