RedGreenGuy
Member
Have 930 case that's not used very much. Maybe start it once a month for 15-30 minute light work. 2 years ago I removed tank, cut entire back out and did electrolysis on it. Sprayed tank interior with Eastman product to stop flash. 2 yrs later (now) problem is back. Must have 1/8 of an inch of thick black goo on bottom of tank. I have not kept 50 gal tank full because of tractors little use. Did keep biocide in fuel, but have not added any for probably a year. Now my question. Can I add say 5 gal acetone to empty tank and kill the algae and than pressure wash to clean. Can't do good job of washing as tank has 2 baffles.