old vs new water heater tanks
#1
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old vs new water heater tanks
How come the older tanks lasted longer than the new tanks? What changed in their manufacture also when did the shorter life taking effect?
#2
As with all manufacturing, the makers of almost any product tend to try and save on material cost. Thinning metal, changing the composition of products all lend to a cheaper product over the years. There is no definite time frame. It just happens.