Introduction
Electric toothbrushes have one or more O-rings to prevent water from entering the handle and damaging electric parts in the handle. If the O-ring wears out, you'll see water seeping through the handle during use.
Parts
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Using the pliers, rotate the head base 90 degrees counterclockwise and remove core from the handle.
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Conclusion
To reassemble your device, follow these instructions in reverse order.
