Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to change a dip tube [title] Check when your water heater was manufactured. [step] 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.

Ending1: 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. Ending2: [substeps] Look on your water heater for the serial number. This is probably on the back of your tank. Ending3: [substeps] 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. Ending4: Check your water heater's manual to find out what type of dip tube you need. [substeps] 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 format: ending1/ending2/ending3/ending4