- Apr 8, 2013
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I use large rubber feed bowls in the summer filled with water just to make sure the birds never run out. My father came by and decided to work on a tractor and used one to drain hydraulic oil into. He dumped it and wiped it out and told me it was the heaviest oil drain he's ever seen. I washed it out with soap and water and bleached it as well. I see no residue and any sign oil was ever in it. Do you think its safe to use as a waterer again?