Tannins Removal

Tannins are natural organic materials that are found in decaying vegetation. They fall into two large primary categories: humic acids and fulvic acids. Rain water passes through these organic materials, taking on a weak tea or amber colour before ending up in wells and surface water supplies. Although this is a natural process, the presence of tannins in water supplies has increased over the years due to climate change. When humans burn fossil fuels, sulphur dioxide and nitrogen oxides are released into the atmosphere. These air pollutants mix with water and other materials before falling to the ground in the form of acid rain. Over time, acid rain alters the PH of the soil in falls on, removing minerals and nutrients. This damages vegetation, leading to an increase in tannins. 

Tannins are not considered a health concern, but they can cause yellow staining on clothing and fixtures as well as an unpleasant appearance and taste to your drinking water. Tannins are a headache because they're an aesthetic problem and because they can't be penetrated by other water purification systems. This means that if you use an ultraviolet sterilizer in your home, tannins would render it useless. 

Tannin Filter removes tannins from your water supply with an anion resin. Through a process called ion exchange, the negatively charged anion resin acts as a magnet, causing positively charged tannins stick to it, allowing only clean water to enter your home. During the process of regeneration, water-softening salt is turned into a liquid brine. This liquid brine flows through the system, rinsing the resin, and replacing tannin with sodium ions. The brine solution and tannin is then sent to drain and your system resumes normal operation.