So I just realized it's been a month since I tested the CYA. I tested it today and it has to be less than 30. (I could still see the dot when the tube was filled). This could definitely be contributing, right?
I keep adding SO much chlorine everyday! It keeps burning off!
- Thread starter timmco
- Start date
- May 11, 2021
- 973
- Pool Size
- 7000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-30
Yeap. On your climate you probably should be aiming to at least 40ppm.
I’m in the northeast (barely getting to 80s during the day) and I’m also burning 4ppm of chlorine per day with 30 CYA. Of course I’m using way less LC due the size of my pool.
- May 11, 2021
- 973
- Pool Size
- 7000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-30
Any 99-100% pure CYA should do. Im using Clorox Stabilizer from Amazon (likely the only Clorox product that is Ok to use), but there are many other out there. Use the sock method if using granular CYA.
- May 3, 2014
- 62,676
- Pool Size
- 6000
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
Very low CYA does not protect the FC from the sun.
Any dry stabilizer is fine. Should be 100% cyanuric acid.
Any dry stabilizer is fine. Should be 100% cyanuric acid.
- May 3, 2014
- 62,676
- Pool Size
- 6000
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
Add the CYA by using what we call the sock method. Get an old sock (no holes) and put the measured amount of CYA you need. Tie the sock closed and either suspend it in front of a return (hang it from your brush pole works with something weighted on the deck) OR if it still allows flow thru the skimmer, place the sock in the skimmer. Every 15/20 minutes give the sock a squeeze to speed up the process. Please DO NOT follow the directions on the container of CYA to just pour it into the skimmer and don't just toss the sock in the pool as the CYA is acidic and can bleach/stain pool finishes.
- May 11, 2021
- 973
- Pool Size
- 7000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-30
- Jun 8, 2019
- 4,581
- Pool Size
- 20000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
CYA does break down over time too, just very slowly. Hotter water can cause it to break down a little faster.
a leak in the pool that gets refilled via autofiller would cause a CYA loss that you'd miss entirely unless the testing shows chem loss.
mguzzy
Gold Supporter
Do you live in that part of Texas that had a lot of rains last month? That could explain the rain dilution. AND the unexplained chlorine loss, if there was more UV degradation than you were thinking.
Stabilizer is one of the chems that stores well, So I buy it 25 lbs at a time and seal it in a plastic bucket.. But I notice that the prices really went up this year.. lkike all the chems have apparently. Search for PuriTech on Amazon or Walmart.com
See picture of my CYA addition. Being in the Houston area, I have found this year to be the most challenging with regard to CYA levels - on the low side. It has been low and when I bring it up, then it rains again, plus splash out.
Yes, I got a TON of rain!
I didn't realize it could cause the CYA to go down.
- May 3, 2014
- 62,676
- Pool Size
- 6000
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
In my pool, fairly warm water, I can leave the sock in the skimmer or hang it and after a couple hours, the material is very mushy and can be squeezed out in a few minutes.
mguzzy
Gold Supporter
I squeeze the sock pretty frequently to get it into the water. If I am diligent the sock pretty much empty after a half and house of squeezing. Then it will take a day or so to start showing up in the test result.