Sorry, I guess I didn't explain it very well. The container says to run the jets continuously for 8 hours. It does not say anything about staying out of the tub for this time. However, it says when adding the chemical to wear gloves, don't let it come into contact with skin, etc. Just made me a little nervous so I wondered if I have to stay out for eight hours or if I can go back in tonight. It's such a nice night, I sure hate to stay out! Thanks!