Anti-foulants, anti-scaling agents, corrosion inhibitors, buffering and ph agents are added directly to water treatment systems to prevent scale deposition, corrosion of metal surfaces and similar fouling of water treatment systems, and to maintain proper ph level. The additive has started decomposition and its effectiveness reduced after few mileages. It ensures constant monitoring and analysis of system to maintain the minimum level of the additive. An additional agent is added to the system to enhance the product life when required. Supplementary coolant additive is very effective to enhance the efficiency as well as durability of antifreeze coolant. It also lessens the break down time and enhances the coolant change time. These non-toxic materials are also compatible with coolants.