"Guv Bob" fired this volley in news:Y_udnTlDVMrQehnOnZ2dnUVZ firstname.lastname@example.org:
It sounds to me like it would clog up in mere minutes!
I have the top 1/3 of a 5-gallon plastic bucket with a 20-mesh SS screen "ironed" to the bottom as my coolant filter. Nothing larger than about0.038" ever gets back into the sump. (opening size is always smaller than mesh size).
A centrifugal pump won't bitch about 0.038" solids, and if any small chips accumulate in the coolant flow valve, you can just momentarily open it all the way to clear those.
Total cost, about $9.00.
Maybe AFTER the screen, then you could use a finer filter...