What is Silica?
Silica also known as silicon dioxide, is a compound made up of silicon and oxygen.
Silica is very common in the earth’s crust and is only slightly soluble in water. Things like sand, quartz, and granite. Many animals and plants also use it to build their skeletal structures.
As New Zealand is a volcanic country, we have higher levels of dissolved reactive silica than other parts of the world.
In many cases it is mistaken for hardness, as it can cause scale which looks very similar, but is extremely difficult to remove.