Bob,
Let me know what happens. I have only seen the sludge in my filter and the hose seems to be weaker. Looking inside one hose that I split open it was very rough all the way through and I could see where some small pieces had came loose. But I don't know for sure that the Ethanol did it. I just never had a problem before they added so much of it and the small engines around here are really having problems.
Ron
