i have a 16x42 above ground metal frame salt water pool. i have drained, cleaned, vacuumed & refilled the pool 6 times & each time it will be clear for 1 day then start turning a light green tint in color & have little brown spots on the bottom of the pool. i drained, cleaned, refilled pool & added salt monday. pool looked good tuesday nigh before i went to bed water was clear & no light green color. water readings were: total hardness 100, total chlorine 1, free chlorine 1, bromine 2, pH 7.2, total alkalinity 40, stabilizer 50 & salt 2630. wednesday mornin i woke up to clear water but pool was light green color. water readings were: total hardness 100, total chlorine 1, free chlorine 1, bromine 2, pH 7.8, total alkalinity 120, stabilizer 50 & salt 2630. i was told to reduce pH, increase hardness, add algacide & salt. its been 8 hrs & now pool is no longer light green color its green. water readings are: total hardness 100, total chlorine 1, free chlorine 0, bromine 0, pH 7.8, total alkalinity 40, stabilizer 50 & salt 3090. i dont know what else to do, i've been fighting this pool for over a month. HELP PLEASE!!!!!