I am new to the world of water based coolants & have a question. Every day or so the coolant seems to thicken up. I add five gallons or so of straight water to bring the coolant level back up and check it for its percentage level. (10 to 12 percent) Then add mixed water and coolant to top off. When I run the machine it looks as if the water and coolant are not mixed. When it pools on the table after it cycles I can see straight water and dark coolant.

Tom