How to change a dip tube<br>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.
Does this next sentence follow, given the preceding text?
Dip tubes made after 1997 weren't defective as often

Choose your answer from:
[1]. Yes;
[2]. It's impossible to say;
[3]. No;
[2].