PH level to make eyes sting less

[Red Shirt Ensign]

Hi All,
I keep seeing differing opinions when I searched on this, so I thought I would post for myself and continue the debate!

My Daughter keeps complaining that her eyes are stinging when opening them in the water.
Do I lower the PH towards 7.2, or bring it up towards 7.8 to make eyes sting less? My PH is right on 7.5

My TF-100 Tests last night after the swim
FC 3.0
PH is 7.5
TA 90
CH 230
CYA very little (Did not re-test though I added some last night finally)


Your thoughts!

Thanks Dan

 

[Patrick_B]

With no Cya, 3 FC could contribute, but to further comment, I'd want to see the CC number. The pH of 7.5 should be perfect.

 

[Red Shirt Ensign]

With no Cya, 3 FC could contribute, but to further comment, I'd want to see the CC number. The pH of 7.5 should be perfect.

my CC number was 0 last night (Has occasionally been .5 since I opened, but in line with the normal testing goal guidelines)
I did add CYA last night so maybe that will help reduce the sting.

Even though "I" think 7.5 is great... if I wanted to adjust PH to reduce sting, would I go lower or higher than the 7.5?

 

[mrcarcrazy]

avg. human tear is pH 7.0.... I'd wait and see what the CYA does, if it helps the sting or not. If not you could try 7.2-7.3 I wouldn't advise getting too carried away. (I suspect it's the lack of CYA)

 

[Patrick_B]

I agree. The Cya will buffer the FC. The pH is not the problem IMO, and obviously not the CC here. I would guess it's the unbuffered chlorine in your case. Also, lots of swim time can mildly irritate anyone's eyes in perfect conditions.

 

[jblizzle]

Also, lots of swim time can mildly irritate anyone's eyes in perfect conditions.

This is a key point!

 

[Red Shirt Ensign]

Thanks Everyone, I will listen to the club you are beating me on the head with (That's why I come here!) and let my CYA work in before deciding to change the PH!

 

[pooldv]

Did someone mention CYA?

 

[Patrick_B]

I will also re-emphasize swimming for periods even in perfect water will irritate eyes. Especially if they are open under water, for even short amounts of time.

 

[kris77]

My levels are CYA of30, FC right about 4-5 and pH of 7.5 and nobody in my family complain about stinging eyes.

My fish of a 6yr old is always underwater with his eyes open. Never even get bloodshot.