Our pool was clear and perfect a few weeks ago. Went out of town for a week and I shocked it before leaving hoping all would be well. I return to zero chlorine. 6.0 ph and 0 cya. Yesterday added stabilizer so cya is high now but also added 3 gallons of chlorine and 64 ounces of ph up (per tfp recommendations). This morning there is no chlorine and ph is 6.5. Maybe a phosphorus problem or am I missing something? 3 gallons gone!
3 gallons of bleach gone overnight
- Thread starter Juliebrownmom
- Start date
Hi, welcome to TFP! I have a couple of questions for you. How did you add the CYA? Did you use granules or liquid CYA? What are you using to test your pool?
- Jun 24, 2021
- 7,500
- Pool Size
- 30000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-60
Welcome to TFP!!! 
Can you post a full set of test results?
pH
FC
CC
TA
CH
CYA
Also, can you fill out your signature?
www.troublefreepool.com
Can you post a full set of test results?
pH
FC
CC
TA
CH
CYA
Also, can you fill out your signature?
Create Your Signature - Further Reading
www.troublefreepool.com
Ok, I want you to add enough liquid chlorine to reach 10 ppm and let the pump run to mix it in. After 15 minutes check the FC. If you have lost more than 1/2 the FC in that time you will need to follow the
SLAM Process process, only check the FC every 15 minutes and to back to slam level until the FC starts to hold.
What is your current CYA? If you see granules on the floor of the pool you will need to brush the pool frequently. Do you have a vinyl liner or plaster surface pool?
EDIT: If you can answer Poolstored's questions that will be helpful too!
SLAM Process process, only check the FC every 15 minutes and to back to slam level until the FC starts to hold.
What is your current CYA? If you see granules on the floor of the pool you will need to brush the pool frequently. Do you have a vinyl liner or plaster surface pool?
EDIT: If you can answer Poolstored's questions that will be helpful too!
You should use the sock method to add cya. not a good idea to put the granule's directly in the skimmer
It doesn’t look like my reply posted.
I haven’t done a full test for a few days but here’s this:
PH—6.5
Chlorine—after adding a gallon this morning it’s 3.5
Cya—was zero yesterday so added per tfp recommendations and now 70
No granules on the bottom of the pool or in the skimmer or anywhere so seems to have dissolved completely.
I haven’t done a full test for a few days but here’s this:
PH—6.5
Chlorine—after adding a gallon this morning it’s 3.5
Cya—was zero yesterday so added per tfp recommendations and now 70
No granules on the bottom of the pool or in the skimmer or anywhere so seems to have dissolved completely.
- May 3, 2014
- 58,349
- Pool Size
- 6000
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
Good to know—the company that built the pool and the pool store both said to just add slowly to skimmer and run pump on quick clean to flush quickly. I’ll try sock next time.
Just tested:
TA: 200
FC: 2.4 (dipping since this morning but at least still present)
Cc: 10
Ph: 7.0
Cya: 50
Ch: 250
- Jun 24, 2021
- 7,500
- Pool Size
- 30000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-60
Add another 5ppm of liquid chlorine now. Don't add anything else. Test after sunset. If you are below 3, add enough liquid chlorine to get to 5-7ppm. Run the pump for 30 minutes, retest.
After sunset, and your FC is above 3, Do this test tonight...Link-->Overnight Chlorine Loss Test
After sunset, and your FC is above 3, Do this test tonight...Link-->Overnight Chlorine Loss Test
- Jun 24, 2021
- 7,500
- Pool Size
- 30000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-60
You have this in your signature.
Healthcare system with copper ions (but running it very low)
Can you remove it? Copper can cause staining and is pain to deal with copper in the pool.
Healthcare system with copper ions (but running it very low)
Can you remove it? Copper can cause staining and is pain to deal with copper in the pool.
Julie Brown
Vinyl , In ground
27000 gallons
Healthcare system with copper ions (but running it very low)
Vinyl , In ground
27000 gallons
Healthcare system with copper ions (but running it very low)
We can turn the copper system all the way off and just run the pool on only chlorine. We had to do that last year because got too high.
- Jun 24, 2021
- 7,500
- Pool Size
- 30000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-60
Sorry, to be clear, can you remove the healthcare system from your pool? It adds copper. Copper is no bueno in el poolo.
Copper in Pool Water - Further Reading
www.troublefreepool.com
- Jun 1, 2018
- 13,676
- Pool Size
- 26000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
We would have to research how to do that—not sure. We were told the low levels of copper, along with chlorine, would help aid sanitation and keep all levels steady. I’ve been ignoring their advice to keep chlorine at 1.0 since that caused algae last year. I’m certainly ready to just turn it off and not use it.Sorry, to be clear, can you remove the healthcare system from your pool? It adds copper. Copper is no bueno in el poolo.
Copper in Pool Water - Further Reading
Pool volume is 27000. I used the tfp calculator and it told me to add 8 lbs of cya to raise from 0-40. I added 8 lbs yesterday and cya is good at 50 for now.
- Jun 1, 2018
- 13,676
- Pool Size
- 26000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
A cya of 50 is better- in post #7 you stated 70. I thought maybe you overshot it because your pool was smaller than you thought. For future reference if you think you might need to slam don’t raise cya beyond 30/40. As the cya increases so does the necessary slam fc level.
FC/CYA Levels