so today while doing my daily pool check. I swore I saw green on the bottom of the pool. A quick double check of my test results, hmm all is fine. Still worried I call to hubby, we have algae bring home bleach. DH comes home with bleach takes a look at the "green" to tell me it isn't algae, the water is so clear the green of the trees above our pool were reflecting of the bottom. Thank you TFP, I never would of thought a pool could be so clear to be green.