So, for the first couple years after I moved in new house, I flushed (drained) the water heater once a year (its a gas unit). Then got busy and forgot. It been about 10 years since I last flushed and heater is still fine. On city water, so water is filtered pretty well. Was going to flush but then saw episode on This Old House, where new owner's flushed heater and two months later it failed (i.e. leaked). Plumber stated that his experience was that flushing a heater that hadn't been periodically flushed, always seem to result in failure soon after. Not sure reason, whether ten years or crude in the bottom covered cracks in liner and once buildup was removed, crack was exposed resulting in failure soon after.... No clue.
Curious what the experienced plumbers on this web-site think of this guy's theory/experience.....
Curious what the experienced plumbers on this web-site think of this guy's theory/experience.....