I just greased my Whirl Away Scrubber with Lithium grease via the grease fitting on the spinner. I have been told that only Silicon grease should be used to protect the seals. Is there a problem using lithium grease (can't find silicon grease cartridge to fit in my grease gun) instead of silicon? If so, what's the best way to remove the lithium grease and redo the grease job? Any help is appreciated - thanks.