Bicarbonate de soude 1. Empty your machine of all coolant and make a first cleaning with clear water in the machine.

2. Mix (1) KG (2.20 Pounds) of Baking Soda for every 50 gallons capacity of your machines reservoir and add the necessary water for the good circulation with the pump.

3. Have your machine circulate the mix for about 1 hour.

4. Drain the water and Baking Soda mix from the machine, if the machine is clean then replenish wit the Monroe coolant with the right concentration, wich is usually 8% this should give you a final concentration equal or a little superior to 6%.
N.B.: If there is still a little of the water and Baking Soda left this should not affect the new Monroe coolant you just put in.