Quote:
Originally Posted by diugo
Not lucky, just smart. I know how galvanic corrosion works. The whole fundamental purpose of the anode is to prevent corrosion entirely---including at the rod itself. I have never had any "corrosion problems" because I always replace the anode before it is depleted.
Why no tape? Because the anode and tank MUST be in good electrical contact in order for the anode to do its job. Tape actually reduces the electrical contact, reducing the anode's effectiveness.
The only time tape is needed is when some bonehead fails to replace the anode before it dissolves, and corrosion then damages some of the threads, leading to leaking.
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No; you are dealing with pipe threads that taper to forum a binding fitment has the components are screwed together. Since you are dealing with pipe threads the fitment may be slightly lose between the root of the female fitting and the peak of the male fitting, allowing a leak. That is why a third medium is used to take up this gap between them. This is why the industry uses either pipe dope or Teflon tape for this joint.
Jim W.