Profile: MAA Engineering Service offers softeners, cooling towers and reverse osmosis plants. Our round bottle shaped cooling towers are compact, heavy duty efficient cooling towers, which are used in various industries and HVAC applications. Due to the self rotating sprinkler, the water is properly distributed over the PVC Fills. The shape facilitates in desired airflow. Axial flow fans that are designed aerodynamically with adjustable pitch are used in our cooling towers. Water softeners are high technology equipment which remove excess amounts of minerals like calcium and magnesium from water. They are used to remove ions that cause hardness in water. The process involves using ion exchangers designed to remove ions which are positively charged. These machines use sodium as the exchange ion, and are supplied from dissolved sodium chloride salt. The core of a water softener is a mineral tank, filled with polystyrene beads or resin carrying negative charge.