Have you ever wondered “When do I need to clean out and refresh the solution in this tank?”. Well, we will give you the guidelines that we use every day as we clean our parts from the SR-30, SR-35, and QSR support materials from the Stratasys 3D Printers. There are also tips for other cleaning tanks and support materials than just the one portrayed in this video, so stay tuned to pick up those as well. In short you should change the solution from your wash tank as it is needed, and the baseline you can use is when a general part takes longer than four hours to clean. We hope this gives you a good guide on when to refresh the cleaning solution in your tank for 3D printed parts using a soluble support material.