Just purchased a forclosed house with a pool. When I bought it the pumps were running and the water was clear this is still the case. I have 4 kids and after swimming 3 of them had very red skin that they said was burning them. Gave them a shower put on lotion and it was gone the next day. I had Leslies test the water and got the following results.

Free Available Chlorine = 1
Total Available Chlorine = 0.2 difference
Cyanuric Acid = 80
Total Alkalinity = 120
PH = 8
Total Dissolved Solids = 1500

I added some Muriatic Acid to lower the PH and the guy at Leslies wasn't any help on what could be causing the skin irratation. Looks to me like the Chlorine level is low so this shouldn't be a cause of the kids skin irratation. Another though is that its allergy season and maybe pollen is an issue in the water although I don't see anything visibly.

Im looking for any suggestion on what are the possible causes of the skin irratation with my above numbers.

Thanks in advance for any advice.