We have a 56K gallon commercial pool in our community that was opened about 2 1/2 weeks ago. Upon opening it was a green swamp and the pool service people poured in some chlorine and then it turned to a teal/blue green color. Pool was then refilled since it had been drained down for winter. Sequestrants were added to control some of the iron in the water from filling the pool from the fire hydrant. Water has remained cloudy since to the point that you couldn't even see the pool bottom or the main drains which is an unsafe condition. Water clarity is slowly improving by small increments daily but it has been a tedious process and water is still not safe to really swim in. Pool was tested and has extremely high phosphate levels of over 1000 ppb which I believe are continuing to feed the present algae making the clearing process even longer.
In reviewing the various resources on the site, it seems to me that if the pool had been properly SLAMmed and shock levels maintained relative to the CYA that the water should have cleared up much sooner than this. My question is what should be the time frame to turn a cloudy pool back into a crystal clear pool if the proper techniques and procedures are followed.
Thank you in advance for sharing your experiences.