Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to clean a swamp cooler [title] Remove the panels and take out the fiber pads. [step] Unplug the cooler and turn off the water. Then remove the panels.

Ending1: You'll need to lift the panels away from the cooler if they didn't come off originally. Remove the thin " drain " bolts and install the water pump. Ending2: Open all clamps with hinged bolts or soap caps to remove the pads and bolts. [title] Wipe the cooling unit down with a damp paper towel. Ending3: Once the panels are removed, take out the used fiber pads. [title] Drain the water out of the swamp cooler. Ending4: [title] Wash the flooring and the cooler. [step] Run lukewarm water over the floor and panels of the cooler, being careful not to touch the glass.

Answer format: ending1/ending2/ending3/ending4