question: Complete the next sentence:

How to change a dip tube
Check when your water heater was manufactured.
Nearly all gas and electric water heaters manufactured between 1993 and 1997 were installed with defective dip tubes. The dip tubes were made of a material that quickly degraded and disintegrated, causing dip tube failure.
OPTIONS:
- Because of this, if your water heater just came with a defective dip tube, you'll need to turn it back on and try again. This has been the only issue for most gas and electric water heaters.
- Look on your water heater for the serial number. This is probably on the back of your tank.
- If your water heater has been in operation for more than a year, are it not defective? Look to ensure that your water heater is not defective by looking to see whether the cap is damaged or rusty. Small holes in the caps may indicate defect.
- Check your water heater's manual to find out what type of dip tube you need. If your water heater was produced in 1997, consult the manufacturer's manual for additional information, such as if you have a house or storage facility that is regularly equipped with dip tubes.

answer: Look on your water heater for the serial number. This is probably on the back of your tank.

question: Complete the next sentence:

How to stay underwater longer
Start a cardiovascular exercise routine.
The best way to increase the amount of time you can stay underwater is by increasing your cardiovascular ability. By committing to a cardio training exercise routine, you'll increase your body's ability to process and use oxygen.
OPTIONS:
- Do cardio 1 hour a day, even if you're not very active. Studies have shown that people who engage in cardio exercise their entire lives have lower cholesterol levels, which can help them go longer.
- Commit to running, powerwalking, using an elliptical, or another cardio activity. Exercise 3 to 5 times a week for at least 30 minutes.
- This will help you to stay underwater longer, and even help prevent injury. You want to make sure that you've kept up your cardio pace as much as possible, without injury.
- Take the following steps to start a cardiovascular workout regimen : Start with a short run at a medium pace for 30 seconds. Running for 30 seconds is about the same as hopping 3 times--you increase speed in that time period.

answer: Commit to running, powerwalking, using an elliptical, or another cardio activity. Exercise 3 to 5 times a week for at least 30 minutes.

question: Complete the next sentence:

How to store plums
Purchase or pick good plums.
Look for plums that are free of blemishes, discoloration, and soft spots. You can ripen plums at home, so the important thing is to make sure you're picking plums from a good batch-it's okay if they're still a little hard.
OPTIONS:
- Buy large, artistically ripe plums. If you want to save money, look for chefs who have plums already in their recipes.
- Buy your plums at the grocery store, market, and have them shipped away or stored in a cool and dry location. Determine how ripe or unripe the plums are.
- Look for flat or canchy plums with little tenderness, dry spots, and prominent veins. People might also think they're edible when they take them out of the refrigerator.
- Place the unripe plums in a paper bag. If your plums do not yet smell fragrant and feel slightly soft to the touch, they need to ripen outside the refrigerator for a few days.

answer:
Place the unripe plums in a paper bag. If your plums do not yet smell fragrant and feel slightly soft to the touch, they need to ripen outside the refrigerator for a few days.