If your hot tub is the source of a case of hot tub rash, stop using it immediately. This will prevent anyone else from becoming infected, and will allow your own case (if you have it) to heal more quickly.

A simple adjustment of sanitizing chemicals and pH levels is not enough to clear your water of the contamination. P. aeruginosa is a hardy bacteria, and can survive in your filters and pipes. That means it’s time to drain and clean your hot tub.

Add Arctic Pure Fresh Start to the water and circulate for the product’s recommended time—between 20 minutes and 4 hours.
Disconnect the power to your hot tub and trip the breaker to be safe. Running your hot tub without water can damage your pumps and heater.
Remove your filters from the filter well and discard. Simply cleaning the filters, even with a chemical soak, won’t be enough if your hot tub is contaminated. Get new ones.
Drain your hot tub using a sump pump or the drain plug.
Once the water is removed, thoroughly wipe down the interior surfaces with a diluted bleach solution—1/2 cup of bleach in 1 gallon of water. A hot tub cleaner (unless it’s antibacterial) or a white vinegar solution won’t be enough to sanitize the shell.
Spray down the shell with water and wipe clean. Do not leave any cleaning solution behind. It can affect your water chemistry.
Install your new filters.
Refill your hot tub with fresh water. We recommend using a hose filter to prevent copper, iron, and calcium from getting into your tub. Or you can put the garden hose into your filter well.
Turn the power back on, and start your hot tub.
Test your water and adjust pH levels accordingly.
Add your sanitizer.
Shock your hot tub water and allow it to circulate.
Set the temperature to 100°F to 104°F.
Let your hot tub run for 24 hours.
Retest your water and adjust chemicals as needed.
Get back to enjoying your hot tub, worry free!

Water Issues-Troubleshooting