Hi All, Can I use 2nd hand plastic barrels? I just fund a local place I were I can get used 55 g plastic barrels (blue color) for $20 a piece. I want to use one for fresh water storage and one for salt water storage. The gentleman I spoke with said that the barrels held detergent in them and that if I washed and rinsed them out with bleach they would be fine to use. Will that be safe? Has any one done that without any problems? Let me know what you think. Thanks.