With a regular maintenance/cleanup schedule, you can expect this product to last to your next cleanup. We have however had customers use our product for more than seven months, just refilling the sump with a make-up solution when needed. It all depends on the job and shop cleanliness.
A regular maintenance schedule would be every 3 to 4 months.
If all of these steps have been tried and you still have an issue, you may be using the wrong lubricoolant for the specific job at hand, or there could be other issues that will need to be examined. Please contact us.