Thank you Watermom. For the moment, I am stuck with the "old" type of chemicals so 10 hours ago I used the old type "shock" granules-3lbs- and now the pool color turned from green to blue but the water is not clear yet. I used my only available test kit, OTO/Phenol RedH=7.2 and cl test is orange. I cannot yet calculate the stabilizer level(don't have the right kit) but the chlorine level must be between 20 & 30 (according to "Ben's Best Guess Guide"). The water temperature is 77 early morning and at noon goes up to 87deg.F
I intend to vacuum the bottom of the pool and brush the sides.Is there anything more that I can do?