White flakes from SWG

MarieB

Silver Supporter
May 15, 2021
27
Murrieta, Ca
Pool Size
15000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Hayward Aqua Rite (T-15)
@MarieB ... White flakes from your SWG means your CA is high and your CSI is allowing it to deposit. You should start a thread on that and we can help you get that under control. If you have high CA in your fill water running it through a water softener (if you have one for your house) will help.

I was trying to find a sequestering agent that I could also filter out.. hence the use of MM.. but it appears to be not a complete solution. I am now convinced the surest way to get the iron out of a pool water is with a drain/refill. I think I will try a few staged drain and refills during our rainy season. I just hope it rains this year.
Posting new thread per @mguzzy:
My csi has been within optimal range and I am getting white flakes out of my returns, as generated by SWG. Pool store states calcium hardness at about 440 or so. My fill water is about 200-250 if memory is correct. Replacing evaporation loss always adds more CA. Too expensive to drain and refill, can only refill every five years. I am trying to vacuum out and net out the white flakes, hoping that will make some degree of difference. I do not have a water softener. If my csi is optimal, then the CA won’t attach to surfaces, is that correct?
 

cowboycasey

Gold Supporter
LifeTime Supporter
TFP Guide
Jul 3, 2013
8,648
Southern OK
Pool Size
15000
Surface
Vinyl
Chlorine
Salt Water Generator
SWG Type
CircuPool SJ-40
about the best thing you can do is add a water softener and tie in the hose or whatever your pool fill uses.. That will slow the addition of extra calcium.. I have mine setup this way as my calcium is WAY up there from our water, I have never had an issue with mine..

the next thing may be to do a reverse osmosis on your water, that will take most of the solids out of the pool and get it back to where you can deal with it.. ( I just know about this, I Have never done it) :)
 

Rancho Cost-a-Lotta

Silver Supporter
Apr 10, 2018
2,435
Rancho Cucamonga, CA
Pool Size
18735
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
CircuPool RJ-45
I recently had the same issue. I worked on lowering TA and adding borates. I'm no longer seeing flakes.

 

cowboycasey

Gold Supporter
LifeTime Supporter
TFP Guide
Jul 3, 2013
8,648
Southern OK
Pool Size
15000
Surface
Vinyl
Chlorine
Salt Water Generator
SWG Type
CircuPool SJ-40
speaking of that how are you testing your water? It says you have a K-1005 and you need a K2006C or TF100 to do a complete test...
 

MarieB

Silver Supporter
May 15, 2021
27
Murrieta, Ca
Pool Size
15000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Hayward Aqua Rite (T-15)
I use the k-1005 kit for DPD chlorine and pH and Total Alkalinity and sometimes for calcium and CYA. CYA is hard for me to read so I go to Leslie’s for their tests and make sure mine are similar. I got a separate kit k-1106 for phosphates. Plus I have both chemistry booklets from Taylor.
Also I vacuumed the spa under the returns where the white flakes accumulate the most and collected about 1/4 cup of sludge. My csi is within the pool app range of +- .60.
 

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mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
44,346
Laughlin, NV
Pool Size
6000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
With a SWCG, if your CSI is above 0, you are likely creating scale with in the cell.
What is the CH using your kit.
Have you taken some of the flakes and put some acid on them?
 

MarieB

Silver Supporter
May 15, 2021
27
Murrieta, Ca
Pool Size
15000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Hayward Aqua Rite (T-15)
My calcium today was 520. Been adding fill water due to hot days. And I hadn’t vacuumed since late June so there was a lot of the sludge. I put acid on the sludge and it fizzed like alka seltzer. If I’m within good csi range, are flakes something to be concerned about chemistry-wise? Or is it just aesthetics?
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
44,346
Laughlin, NV
Pool Size
6000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
The flakes are coming from the SWCG. It may or may not completely scale up. So be ware of that.

Otherwise it is mostly aesthetic.
 

MarieB

Silver Supporter
May 15, 2021
27
Murrieta, Ca
Pool Size
15000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Hayward Aqua Rite (T-15)
Ok thank you very much! I’ll keep an eye on the swg plates!

Do you think if I keep vacuuming the flakes out my Calcium ppm might decrease a little?
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
44,346
Laughlin, NV
Pool Size
6000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
It will take 10's of pounds of scale to be removed to lower your CH a measurable amount.
 

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MarieB

Silver Supporter
May 15, 2021
27
Murrieta, Ca
Pool Size
15000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Hayward Aqua Rite (T-15)
Oh yikes! Thank you for that!!! I appreciate all your help on this!!! Have a great weekend!!!
 
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