Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to use an airless paint sprayer [title] Pick the right tip. [step] Choosing the right tip can be as important as having the right pressure gauged on your sprayer. Larger tips generally require more pressure, but can cover more ground effectively.

Ending1: Narrower tips, on the other hand, are best for precision work. If you're unsure about the sort of tip you should be using, contact a hardware professional and give her the details of your project. Ending2: [title] Buy a model of airless paint sprayer. [step] When choosing a model, check the manufacturer's website. Ending3: Metal tips are also more reliable than plastic caps, since plastic can hold more pressure. [substeps] If you want to apply pressure as much as possible, the tip can be more reliable. Ending4: Remember that airless paint rollers have wheels and you can easily attach the lid to the sprayer's motor [title] Test the tip to make sure it's in good shape. [step] Make sure that it is working properly, and that the lid isn't leaning too far in on you.

Answer format: ending1/ending2/ending3/ending4