So just follow the simple Steps to increase the Machine Cutting Coolant life by 400%:
Circulate air inside the coolant within the tank when the coolant is not used or when the machine is switched off. We can circulate air (at reduced pressure or nil pressure) by a small tube which is connected to a fish tank air pump to generate and pump fresh air inside the coolant. Other cheap and best alternative way is to fix a dual output fish tank air pump inside the coolant tank. This will increase the coolant life by 400%.