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 What is BioGuard Perfect Balance used for? Can I use epsom salts or magnesium salts in my spa? How do I change from chlorine to a chlorine free spa sanitiser? What can cause itchy skin and eye irritation? What level of UV light do your UV Sanitizing system produce? Comments 0 comments Article is closed for comments.