Whatever you do, be sure to drain it, clean it throughly, and disinfect
it occasionally. This summer I had to deal with 3 CNC machine sumps that
had been neglected for a couple of years. Think hazmat squad with
biohazard suits level of problem.

Ignoramus28420 wrote:
I opened up the sump of the cold saw today and was quite amazed by the
accumulation of sediment comprised of old coalesced water soluble oil,
with metal chips.

Drained everything and spooned the goop out as well, and made a new
mix with new oil, but I am concerned about this crap in the sump.

Specifically, will the oil solution (which looks like fat free milk)
eventually separate if the saw is not used often?

Should I replace the oil periodically? (which is dirt cheap)