In order to properly flush your hot tub, you must take the following steps:

1.  Remove the filter, clean using a Filter Cleaner.
2. Drain the hot tub, don’t forget to turn the power off.
3. Refill hot tub to 1/2 inch above the “high water” mark.
4. Add at least 100ppm of Chlorine to the hot tub.*
5. Cover the hot tub.
6. Circulate the water at a maximum rate of 30-45 minutes.
7. While water is circulating, turn the blowers/air on and off every 5 minutes.
8. Drain the hot tub.
9. While hot tub is draining, rinse the sides several times.
10. Clean hot tub with a Surface Cleaner.
11. Remove excess water.
12. Refill, replace filter, balance, start-up

* In order to deliver 100ppm of Chlorine use the following measurements:

Ounces per 100 Gallons

CalHypo - 65%                                                              2.2

Lithium Hyo - 35%                                                       3.8

Sodium Dichlor - 56%                                                   2.5

Sodium Hypochlorite - 12%                                         15 fluid oz.

Sodium  Hypochlorite - 5.25%                                     35 fluid oz.