How To Remove Bacteria From Hot Tub. So a sanitizer is still necessary. @thep00lguy often jets the hot tub down as it is draining.
By releasing ions into the water, ionizers inhibit algae and bacteria. A regular water care routine helps remove things like bacteria and other contaminants that you don’t want in your water. If your spa has an ozonator, unplug it.
Sanitize the area around your spa where the bacteria may be waiting to recontaminate the spa.
This will fill the air lines along the bar top of the spa. As a result, even being slightly off on your chemical balancing can cause problems. Spray bleach onto the inside of your hot tub cover—let it sit for at least 8 hours. This will fill the air lines along the bar top of the spa.