Was feeling proud of myself till today. Opened the pool Monday, it was looking awesome until I went to cut in for the solar heat. Got everything plumbed in, then turned the pump back on to check for leaks and watched in horror as a huge cloud of rusty colored water spewed into the pool. I should have backflushed first. 
Now the water is slightly cloudy and tinted again. I will run the pump overnight and run a sequest test in the AM.
Now the water is slightly cloudy and tinted again. I will run the pump overnight and run a sequest test in the AM.