I think that the tubes crack because of exposure to alcohol.I have just been looking at mine last night with a view to replacing due to wear of the velvet pads and I noticed some light lines of cracks on the parts of the plastic tube.
I have been using about 10% alcohol with the VPI fluid. Maybe I should stop adding the alcohol...
I have been using about 10% alcohol with the VPI fluid. Maybe I should stop adding the alcohol...