We are new pool owners of a 6,000 gallon above ground pool and we have been plagued by algae problems since the beginning. We have already drained the pool twice because it seems to be the only way to rid ourselves of the algae. We are running the sand filter (1,500 gallon/hr) Sand Filter Pump) 24/7, vacuuming, cleaning out debris, and scrubbing the walls daily. Once we see any signs of algae we begin shocking it with bleach every night to keep FC levels at 10. We have never let the FC numbers go below 5. We test it at least every other day with a Taylor k-2006 pool kit. We have had problems with our Alkalinity levels fluctuating frequently but we try to address it as soon as it goes out of range. We are at our wits end and the local pool store has been zero help. We would welcome any and all advice!