Hot water bag is my oldest kind, is a kind of soft plastic, which is not what the electric heating pipe, without electricity, the principle is very simple, is the hot water poured into the hot water bag, and then tighten the lid (rotation), can be used. Two days ago I used later forget to heat the water release, like the glass jar filled with hot water and then tighten the lid forgot to water, now open. The hot water bag is parents brought me, I don't want it rotten, hope you experienced enthusiastic people to help me, appreciate it.
It is recommended that you soak in the hot water bottle inside the boiling water, and then let a little boy to help you twist.Wish you success!
Then tighten the direction of the direction of the screw again, and then in the opposite direction!
You can do this, put the hot water bottle in the mouth of the hot water in the bubble, and then he will be back when it is hot! Should be useful!