Eye Sting when pH and CC look good

Red

LifeTime Supporter
Sep 11, 2010
85
Orange County, CA
One of my children frequently complains about eye sting from using the pool. Others may notice a minor irritation, but he seems especially sensitive. I'm trying to figure out if there's a way to improve the pool.

Here are my test results from today:
FC7.5
CC0.0
pH7.4
TA60
CH450
CYA60
Temperature79F
CSI-0.43

I cleaned the filter last week and put in CYA and planned to adjust things today after it's had a week to dissolve. I plan to raise TA and pH to get things in balance. The FC/CYA Chart recommends a little higher CYA.

From my understanding of eye sting, it comes from pH and/or CC, but I believe my numbers look good. What other things might help?
  • Even though the FC/CYA chart recommends a lower FC for a SWG, I tend to run the pool with higher FC after some previous discussions here. Could the higher FC level be causing sting?
  • I researched some things and ran across Orenda. I was pleased to find several blog articles about technical aspects of chemistry (which aside from TFP, I generally don't find), including this one about ideal pH. At the end of the article, the mentioned relying too much on chlorine for bather waste removal, which has a link to another article that talks about using their enzyme products (CV-600). I'm wondering if trying something like that might be helpful. Does anyone know about such products? (I know TFP tries to keep us in the basics, but I'm looking for something to keep my son's eyes happier.)
Thanks for any thoughts.
 

Red

LifeTime Supporter
Sep 11, 2010
85
Orange County, CA
Never heard of the stuff. But I can tell you that some sunscreens burn like the devil when they sweat or wash into your eyes. Might be something to experiment with.
Thanks. I checked and sunscreen isn't currently in use. Hmmm...but that did question bring up a different issue we need to remind our children of :)
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
29,694
Laughlin, NV
Children tend to rub their eyes when in the pool. That leads to red, stinging eyes. If they can not resist rubbing their eyes, get them goggles.

Also, there is no need for you to adjust TA or pH as it stand now. pH will rise on its own. Let it settle at 7.8 or so.

Your FC is not elevated.

Do you cover your pool?
 

Red

LifeTime Supporter
Sep 11, 2010
85
Orange County, CA
Children tend to rub their eyes when in the pool. That leads to red, stinging eyes. If they can not resist rubbing their eyes, get them goggles.
That's an interesting observation. He uses goggles less than others, so it could be a habit he's not aware of. I'll see if I remember to watch for that.

Do you cover your pool?
Not with a real cover. I've been using Heatsavr liquid pool cover.
 

mknauss

Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
29,694
Laughlin, NV
That liquid cover stuff is an alcohol. It may be irritating.

And it really does not work. At least it did not for me. Any wind at all and it is pushed off to one end. A cheap solar cover works great in the spring and fall to keep our pool warm.