car. it's based on the same concept. you need to clean it out from time to time to make sure everything will continue to flow smoothly.
as a rule of thumb, count on having the water drained from your water heater at least once a year. if you have a large household and use a great deal of water, plan on two times to give your water heater the best care.
when you call your plumber for your water heater maintenance appointment, the first thing your plumber will do is check the model that you have.
if you have your manual on hand, you can give it to your plumber. otherwise, he or 