Gobo, what do the nozzles look like on yours, do they have a fairly big opening? Which Fuchs product, I'm assuming full synthetic? I'm still using semi-synthetic for now as I have little trust in full synthetic for rust prevention. I had heard of lathes running 1000psi which is what really had me even more confused about if it was the machine or the coolant. Perhaps I'll eventually have to switch again, we'll see.
This machine has just 1 pump. I wanted the 145psi upgrade for the coolant through insert drills, and on those more PSI would definitely be even better, 145 is cutting it close. Got a coolant through parting blade too but haven't use that yet. I can definitely see now how having 2 pumps would make a lot of sense though, like mills with high pressure coolant usually do. I still have the original 65psi one that it came with.
I ended up modifying 4 of the nozzles after lunch today, soldered brass pipes onto them to mix less air than the 45° deflector they had. Thing is, its only about a 3/16" opening, pump is 3/4" hose, so its got some speed/flow/pressure coming out of there. But it has helped enough that I was able to keep it running, I closed the bypass since this job uses an insert drill going 3.70" deep in 316, it still foams a good bit but not overflowing. Some improvement anyway. For regular turning opening the bypass will make it better yet.
I'll likely throw an ounce of defoamer in there next week when it arrives anyway just to see how it does.
Anyhow, this thing has been a bit of a learning process so far, thankfully getting better with the programming too.