Good morning. My CYA has been low (30) and I think is possibly a culprit on my daily chlorine loss. Would it be recommended that I up my CYA to around 50 to help combat my daily chlorine loss?
Low CYA = Chlorine Loss
- Thread starter JasonPTex
- Start date
- Jun 24, 2021
- 16,466
- Pool Size
- 29000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-60 Plus
Yes, that would be the next step. In TX, if you manage your FC daily and understand CYA, I would not hesitate to raise it to 60.
- Feb 6, 2015
- 7,849
- Pool Size
- 12300
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
First do an Overnight Chlorine Loss Test to rule out algae.
If you pass the OCLT, then raise your CYA to 50-60.
Use the FC/CYA Levels chart to dose FC accordingly.
If you pass the OCLT, then raise your CYA to 50-60.
Use the FC/CYA Levels chart to dose FC accordingly.
- Jun 24, 2021
- 16,466
- Pool Size
- 29000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-60 Plus
Yeah, @proavia is right. Should have looked at the logs. You are letting FC get below minimums. You never want to test and find FC below minimums.
Do the OCLT to rule out algae (it can be there even if you can't see it). Getting rid of it is easier with CYA of 30, than CYA 60.
Keep your FC at the top of the range using the FC/CYA levels tool/chart.
Do the OCLT to rule out algae (it can be there even if you can't see it). Getting rid of it is easier with CYA of 30, than CYA 60.
Keep your FC at the top of the range using the FC/CYA levels tool/chart.
- Jan 7, 2012
- 2,128
- Pool Size
- 21000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Yes. 50-60 would be suitable for our climate. As noted above, pass an OCLT first before bumping up your CYA. Have you thought about a SWCG?
Only lost .5 overnight. My poolmath app says to raise CYA to 45. Being that I'm in Texas should I lean more towards 60?
- Jun 24, 2021
- 16,466
- Pool Size
- 29000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-60 Plus
borjis
LifeTime Supporter
I'm in Oregon and anything less than 50 ppm cya, I definitely lose more. Tried 30 the first year.
I'm in CT & try to keep chlorine at 6ppm & cya at 35 which works best for our pool. Our climate is very different from TX except during a heatwave like we had last week! We open each spring to less than 20 cya (due to water level taken down at closing & then re-added at opening. So we lose cya each winter) Pool guzzles chlorine when our cya is that low. We use the sock method to add powdered cya to get reading back up to 30-35 where water becomes quite stable.
I (wifey-poo) do all testing via TFP & use pool math calculator. Plumber-hubby does all opens/closings/vacuums. Switched to liquid chlorine about 10 yrs ago & been using TFP methods & pool math calculator ever since. We open (late April) every year to a perfectly clear pool which is still a thrill to see each year. Installed this pool 33 years ago!
I (wifey-poo) do all testing via TFP & use pool math calculator. Plumber-hubby does all opens/closings/vacuums. Switched to liquid chlorine about 10 yrs ago & been using TFP methods & pool math calculator ever since. We open (late April) every year to a perfectly clear pool which is still a thrill to see each year. Installed this pool 33 years ago!
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