All that gunge and crud has been produced by the electrolysis effect set up by the positive and negative plates within the cell. With the sealed lid on and a tube to the carb of my mower it would start it but not run it. as the production rate is inadequate. I`m happy with the project and n0w on to something else! been there done that got the "T" shirt, Yawn I`m boored! Must get down to the boat and check it out (that will take all of the summer LOL!) Einstein was reputed to have said that " Not everything that counts, can be counted and not everything that can be counted, counts!" Sounds good to me! I was alway nemerically challenged, Tee Hee!