Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to maintain a salt water pool [title] Remove surface dirt and debris with a hand vacuum twice a week. [step] Get a hand vacuum for the pool at your local pool supply store or online. The vacuum attaches to your skimmer box to create suction.

Ending1: You then push the vacuum around the surface of the pool with a pole to suck up dirt and debris. [substeps] A good hand vacuum of the pool will take 1 to 1.5 hours. Ending2: Suction removes a lot of muck and debris from the surface of the pool. This makes it more efficient at cleaning the pool. Ending3: It will also suck up ice, salt and other debris into the pool after cleaning. [substeps] You may need to make an extra effort to remove dirty and debris. Ending4: Suck up any debris or debris from your pool. Use it as cleaning expenses or maintenance! [substeps] Use steel wool to clean your pool.

Answer format: ending1/ending2/ending3/ending4