Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to prepare your spa for winter [title] Add whirlpool rinse 24 hours before you drain the spa. [step] Whirlpool rinse removes & dissolves accumulated bath and body oils that build up in the plumbing lines, and impair proper jet action. [title] Drop in the submersible pump to remove the old water from the spa.

Ending1: [title] Shut off the current faucet to remove water from the piping areas. [title] Remove the old water line with disposable wrenches that contain coiled hair and clamps. Ending2: [title] Check the tub hose several hours prior to you be in. [step] Check it again in the morning and evening to make sure everything is balanced, and be prepared to deal with the breakage. Ending3: [title] Begin vacuuming by hand using the circular motions in the cold water bucket. [step] Only ensure any remaining water is vacuumed from the pipes in the new spot. Ending4: [title] While the submersible pump is removing the water, reach into your skimmer and remove your filter. [step] Place your cartridge filter in a bucket of water and filter clean solution, which will degrease your filter.

Answer format: ending1/ending2/ending3/ending4