Summarize the following:
It is important for the space where you'll be working to be clear when you begin the removal process. Take everything off of the countertops. Remove everything out of the drawers and in the cabinets underneath the countertops. Place all of the items in a safe location that is out of the way. If you're working in the kitchen, all of the appliances will need to be unplugged and moved away from the countertops. For example, remove the stove and microwave out of the kitchen. Be careful not to damage them in the removal process. To safely remove your old countertop, you'll first have to disconnect the water lines to the sink and gas lines to the stovetop. Turn the emergency shut-off valves for each fixture clockwise to the off position. Disconnect the supply lines from the valves using an adjustable wrench. Have a bucket ready for draining water. Use your adjustable wrench to loosen the large nuts that hold the J or U-shaped trap to the sink's main drain line. Hold the trap in place with channel locks. If you have a PVC connection, you should be able to loosen the connection by hand. If you have a garbage disposal, disconnect it from the sink as well. your drop-in fixture sink. If you have a drop-in fixture sink, use a chisel or putty knife to pry the sink away from the countertop. Chop away at the layer of dried adhesive under the rim of the sink to free it. If the sink is fastened to a tile countertop, chisel away the quarter tiles along the sink's perimeter. Remove any remaining mortar or adhesive with a caulk remover or chisel. Get help to lift out the fixture, especially if it's large or heavy. If the sink is an undermount type, unfasten the screws holding it to the countertop. While someone supports the sink, remove the brackets underneath the sink. Use a flat chisel to remove the caulk that acts as a seal between the countertop and sink. The sink should come out easily once it is freed from the counter. Have another person help you pull out the sink, particularly if it's an unwieldy double-bowl configuration Be careful not to damage a sink or cooktop that you plan to re-install in your new countertop.
Remove everything from the countertop and drawers. Move appliances away from the countertops. Shut off the supply lines to the countertop fixtures. Disconnect the drain line under the sink. Remove Pull out the undermount-style sink.