Flushing helps but I think a lot depends on your water supply, whether
or not you soften the water or do other filtration, and how you use hot
water (long showers that drain the tank completely shorten the life.) I
recently had mine serviced due to a slow leak in the pressure relief
valve and the plumber said to flush that valvue once a year as well as
flushing the tank. Also said to check the sacrificial anode rod every
few years....
Mark
On 4/21/2014 7:32 PM, steve harley wrote:
On Mon, Apr 21, 2014, at 15:28, John Sessoms wrote:
If you flush them out at least once a year, they'll last longer. Twice a
year is better. Helps if you've got an accessible water heater.
I figure they'll last almost 20 years with care.
ours failed at almost twenty years, but with no care; it had been in the
house about 10 years before we bought it; we replaced it with a tankless
water heater, installed outside the house; the cost was much higher, but
1) it's somewhat more economical, 2) we never run out of hot water and
3) where the water heater used to reside became a much-needed closet
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