Hi, I have microbs in my RV 8 / IO360 fuel. Reason: water in fuel and two years sitting. I have replaced the engine servo, distributor block and cleaned all lines. I decided to empty thanks by pumping from electric pump right into a barrel. All emptied fuel look very clean and I decided to pull the filter (new filter 40 mc). The filter had evidence of microbs so now I am going to fill the tanks with 100LL and add biobor JF (microb killer) and recheck things. Has anyone else had this problem? Any comments or advice? Thanks. Tom