I am using Coolmist water based flood coolant, about 10 gallons. Mixed about twice as think as need, have not noticed residue so I kept it fairly thick.
I have an air bubbler that goes on a few hours a day and a SkimpySkimmer belt that goes on a couple hours a day and does a good job of taking out most of the oil, usually the flood coolant is almost clear/hazy.
Woke up today with a pretty nasty chest pain, I am wondering if it is linked to breathing the coolant. The coolant is about June vintage? I do not use the mill all that much once or twice a month. How long can/should coolant last? Have I gone over the reasonable time?
I am not using any stablizer, biocide, or ph balance right now...
Thanks rich.