Do you perform maintenance to your Osmolator? I have one as well, and often wondered if I'd cause build-up on the pump so bad that it might stop working one day.
Yes Nikki about once a month I pull the pump, osmulator and all the tubing out and set it in a bucket with enough vinegar to keep the pump covered. I cock the eye in the sump a little sideways to fake it out and let it circulate the vinegar. After about 15-20 mins I replace the vinegar with ro/di water to flush it out. Then put everything back like it was. So far it's worked for me.