How produce the water color in the detox foot spa ?
The HZ waves with settled frequency ionize the all substances in the water. The ions react with the removed toxin and generate the color. Sometimes, the color become light yellow after the tap water pours into the device. That’s the color should be, because some rust ionized in the tap water become the light yellow, but no smell and fat. When the body touch the water, it must be different color with some smell and fat.
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