ZJMorgan

New member
Jul 10, 2023
3
South East Texas
Hello all, We have had our pool for two weeks, and the water had been nice and clear until 7/18 when we tested TA, PH, and FC and adjusted per the Pool Math app around 1600 cst, and ran pump 24 hours. Our water has went from pretty and clear to the color of the water in the attached photo overnight. To add, there is not a slimy feeling on the sides or bottom. There doesnt appear to be any algae deposits anywhere, the water is still clear just tinted a green/teal green. I have attempted to research it and have come up with beginning stages of algae or metal oxidation. We did fill our pool with well water that had been filtered through a commercial water filter through Culligans, that supposedly removes metals and sulfides. my current testing stands at FC: 5ppm PH: 7.2 TA: 80ppm TH: 0 CYA:0 (didnt want to add more chemicals until i can get my water color resolved.) Please Help. Thanks The Morgan Family from Texas
 

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Hi and welcome!

No CYA means the chlorine is being used up by the sun quickly. Please put at least 30 PPM CYA based on you pool's volume. Pool Math will tell you how much to add. Use the sock method and after about an hour squish the sock to get it into the water, you may have to repeat a few times.

How are you testing your water? We recommend either the Taylor K-2006C or one from here: TFtestkits.net.

The only way to tell if it's algae or not is by doing an overnight chlorine loss test: Perform the Overnight FC Loss Test (OCLT)

I'm sure others will chime in.
 
Iron can tint clear water green with increases in FC. I'm not sure how effective the Culligan filter is removing iron. Is your fill line for make up water still connected to the filter? Check out this interesting link:

 
Hello all, We have had our pool for two weeks, and the water had been nice and clear until 7/18 when we tested TA, PH, and FC and adjusted per the Pool Math app around 1600 cst, and ran pump 24 hours. Our water has went from pretty and clear to the color of the water in the attached photo overnight. To add, there is not a slimy feeling on the sides or bottom. There doesnt appear to be any algae deposits anywhere, the water is still clear just tinted a green/teal green. I have attempted to research it and have come up with beginning stages of algae or metal oxidation. We did fill our pool with well water that had been filtered through a commercial water filter through Culligans, that supposedly removes metals and sulfides. my current testing stands at FC: 5ppm PH: 7.2 TA: 80ppm TH: 0 CYA:0 (didnt want to add more chemicals until i can get my water color resolved.) Please Help. Thanks The Morgan Family from Texas
I forgot to add that our pool is a 10'x16'x42" Coleman above ground. its the most basic of pools.
 
Hi and welcome!

No CYA means the chlorine is being used up by the sun quickly. Please put at least 30 PPM CYA based on you pool's volume. Pool Math will tell you how much to add. Use the sock method and after about an hour squish the sock to get it into the water, you may have to repeat a few times.

How are you testing your water? We recommend either the Taylor K-2006C or one from here: TFtestkits.net.

The only way to tell if it's algae or not is by doing an overnight chlorine loss test: Perform the Overnight FC Loss Test (OCLT)

I'm sure others will chime in.
Thanks you for responding sir. We are using HTH 6-way test strips. This is our first year with a pool.
 
You can treat your pool like a temporary/seasonal pool. You won't need the full test kit, but you may need to upgrade from your test strips. Check out the article here:


If you have a Leslie's nearby, have them test your water. You can ignore everything except results for metals. Don't let them sell you anything.
 
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