I have been making these things for awhile now with no problems, they float, they fizz like crazy, almost shoot around the tub I mean they are perfect. I thought I finally figured out the perfect recipe, and it was consistant. Well now every batch I have made is a flop they just don't fizz like they use to. They just kind of sit there and fizzle in the tub and then half way through they sink, which they never did before. The only thing I changed was, I went from Poly 80 to 20 (I was hopeing for more fizz action) could it be that, or my baking soda has gone bad, or is it more likely the citric acid. Help! I'm getting tired of wasting my supplies anyone have any ideas?