Use a test kit or test strips to test both the chlorine residual and pH. The free available chlorine reading should be 1-3 ppm and the recommended range for pH is 7.4- 7.6.
Add the following GLB water care chemicals at the suggested label dosage and according to label directions.
Vacuum the pool and clean surface areas with GLB TLC.
Check the pressure gauge on your filter to see if it has reached the point where it must be backwashed or cleaned. The more your pool is used, the more disinfectant it will require and the more frequently the filter must be backwashed or cleaned.
Then add the GLB product of your choice and continue water circulation.
Shock treat the water if needed per water test with one of the GLB shock treatment products. Be sure to follow the instructions on the label.
To prevent algae growth add Algimycin 2000 or your choice of GLB algae preventers.
Add GLB Clear Blue water clarifier for sparkling water.
After these steps are taken, your pool should be sparkling clean, crystal clear, and ready for use.