This water is also brown in color due to
the tannic acid which is given off from the decaying vegetation which has fallen into the blue hole.
It contains
tannic acid which increases the overall acidity of your body, so is best limited to 2 - 3 cups per day.
Not exact matches
This irritates the tree and causes it to release
tannic and gallic
acids,
which form the round oak galls.
Debris from the surrounding trees fall into the blue hole
which then decays resulting in a build - up of
tannic acid and hydrogen sulfide in the water.