Why is there yellow liquid coming out of the Ozonator? Sherralyn August 08, 2019 09:35 Updated Follow This is very normal and is left over Ozone mixing with a bit of condensation. Related articles Do you sell spa minerals? Troubleshooting Guide XS-2000/3000/4000 Series What is BioGuard Perfect Balance used for? Can I use essential oils in my spa? Comments 0 comments Article is closed for comments.