Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to clean a keurig water reservoir [title] Turn off the keurig. [step] Before you begin cleaning, make sure your keurig is shut off and unplugged. You'll be using a lot of water in and around the unit, so you'll want to safeguard the electrical components.

Ending1: These components include power sockets, power bar rails, and power panels. [substeps] If you don't think you have enough power, turn off the keurig power supply and power panel components for a few days. Ending2: Remove all of the dial-operated water valves, the set of connectors, and the liquid stabilizer tubes. [substeps] Re-insert the screw directly into the bottom of your keurig. Ending3: If there's a k-cup pod in the brewing chamber, take it out and dispose of it. [substeps] You can turn off your keurig by flipping the on/off switch on the back of older models, or pressing and holding the power button on newer touch-screen models. Ending4: Follow the keurig's cleaning instructions when installing your machine. [substeps] Some keurig systems have " power switch " or " plug in " lines that will allow the device to automatically turn off and turn off when it is in operation.

Answer format: ending1/ending2/ending3/ending4