Gina D

Hello- I was hoping someone could help! My hot tub is only about 3 years old and the seats and walls have a sticky substance on them since the end of last summer, not slimy or oily but sticky. We have cleaned it and drained it multiple times and changed the filter. My husband swears it is a result of kids accidentally knocking over a huge carton of Goldfish crackers at the end of last summer. Could it be?? I am quite frustrated because I can't even get in it because of this.