Why is there yellow liquid coming out of the Ozonator? Sherralyn June 14, 2018 04:34 Updated Follow This is very normal and is left over Ozone mixing with a bit of condensation. Related articles Do you sell spa minerals? Can I use essential oils in my spa? How do I switch to BioGuard Armour if I have been using Lithium? Comments 0 comments Article is closed for comments.