A dip-tube problem may be present if:
-The hot-water heater was manufactured between 1993 and 1996. Look for a stamped-on code, which should also include the year of manufacture.
- Faucet aerator screens, showerheads, etc., suddenly start to clog with small white particles and clog quickly after cleaning them.
-It suddenly takes forever to get hot water, it never seems very hot, or the hot water seems to run out much too fast -even though the thermostat on the water heater is set to max.

What do I do if I have a dip-tube problem?
-Call your water-heater manufacturer if you suspect a dip-tube problem. Many water-heater manufacturers will replace the dip tube free of charge. In addition, a settlement to a class-action suit against water-heater manufacturers has been reached.
-Proper flushing of the hot-water tanks and lines during replacement of the dip tube should cure any clogging problems caused by the dip-tube particles.