TA Plus is a fine, rapid dissolving powder used for increasing the total alkalinity of your spa water. Apply when total alkalinity falls below 80mg/l (ppm) and then maintain the total alkalinity within the desired range of 80 – 150mg/l (ppm).
Low TA will cause pH bounce, staining and increased corrosion. Common problems are limescale and cloudy water. When the total alkalinity drops too low, rapid changes in the pH can occur which could cause corrosion and harmful or disagreeable bathing conditions.