Originally Posted by 5picker
No harm whatsoever.
Many folks don't siphon the remaining small amount of water from the tank after pulling the tank plug or anode rod. Just like you said, if that little bit of water freezes it won't hurt a thing. Same as if the dog's water bowl sits outside on a cold night, the water will freeze but not hurt the bowl. I believe most do siphon just to keep from having a small amount of stagnate water sitting in the tank for several months or to simply get it as clean as possible.
I was merely replying to the post where the guy said he drained, siphoned and then added a little antifreeze to the tank. No need for that.
Right. I wasn't questioning anything you said in your post, just adding a little bit to your excellent answer. In fact I agree with it entirely.. Also, I forgot to say that I usually rinse out the tank to remove sediment from the anode rod after draining. Of course, that still leaves behind some water in the tank.