People who choose premium, choose Pelican!
Tannins (humic acid) are found in waters which have passed through large quantities of decaying vegetation.
Tannins can cause yellow water and yellow staining on fabrics and fixtures. Tannins measuring 0.5 PPM or higher may cause staining and/or interference with various water treatment processes.
PT3 (1-3 Bathrooms), PT6 (4-6 Bathrooms)