Dense Soda Ash is a powder-shaped chemical commonly used as an air purifier. The accumulation of dead moss in the pool usually causes the pool water to be brownish and dirty. The simultaneous use of soda ash should be in accordance with the quantity of air, because otherwise the soda ash will cause the pool water to be immune to chlorine and pH control. If it happens, you must adjust and use the new air that can cost, time and energy.