DO NOT use that spray bottle. I once used a lemonade bottle as a water bottle, just to hold the water to pour into my watering can. i washed it for about an hr with both hot and cold water, to the point where i could BARELY smell it, and it was the best i could do. call it a coincidence but i had a major ph drop in my runoff from it and i was using plain tap that comes out at 7 exactly. Nothing good whatsoever will come from using a contaminated bottle of ANY kind of fluid to water or feed a plant. no no no no no.