The longer the ozone is in contact with water the better it works. If you bypass it and use simply hose it will shorten the length. Thereby reducing O3 molecules effectiveness at killing bacteria. Is it leaking? Measure it out and put that much hose in, but it's messier. Do you rely on ozone? How old is the O3 generator? What method do you use to sanitize? What kind of filtration system?
Lot going on here but yes you could bypass it.