What is the total number of Water Glycols on the B737-8200?

The total number of water glycols on the B737-8200 is one. Water glycols are generally utilized in an aircraft's systems such as the de-icing system. In the B737-8200, specifically, there is one main reservoir that holds the water glycol solution used for de-icing the wings and other critical surfaces during winter conditions. This design is consistent with the efficiency and weight-saving strategies employed in modern aircraft engineering, ensuring that the system is both functional and lightweight. The existence of only one system helps simplify maintenance and operational procedures while being effective in its intended role.