Originally Posted by mark0224
How do you get one out when they appear to be rusted in without damaging waterheater?
Apply a penetrating oil as Lloyd suggested.
WAIT for about an hour and tap the anode lightly
with a hammer.
The goal is to work the OIL into the rust bound threads, NOT break it loose.
If you hit it too hard you can break the porcelain liner inside the tank.
RE apply the penetrating oil, wait another hour and tap (repeat several times).
Using a CORRECTLY sized ( 1 1/16 inch) socket and a long breaker bar or impact wrench try to remove the anode. It should come out.
If not, you could try drilling it out but you will need to use great care that the drill does not come in contact with the threads. Failing this replacement may be your only option.
Obviously, prevention of this situation is preferred.
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