On the right chemical track?

[LisaDLu]

Hello - Pool was replastered in January so still dealing with adding 16-20oz of acid every other day. But my question is regarding CYA and FC.

Here are my numbers today, testing at about 3pm:
PH - 8.0
TA - 70
FC - 3.5
CC - 0
CYA - 55
CH - 425
Salt - 2900 (output set to 70).
Water Temp - 81 degrees
Saturation Index - between 0.5 and 0.6

I added my 20oz of acid for today but am think it's time to raise the FC and CYA for swimming season. Pool math says to add 34oz of stabilizer. If I raise my CYA will it help my SWG raise my FC level or should I also raise the FC a little with some bleach?

Also, my SWG guide recommends levels between 2700 - 3400 so should I raise my level a little to 3000? Pool math says that would be 14lbs of salt.

Thanks!

 

[Patrick_B]

Ou shouldn't let you pH rise that high, so stay closer on it, and keep it below 7.8.

I would raise both the salt, and Cya up a little. More Cya will reduce some Chlorine loss from the Sun if you get a lot on the pool all day.

 

[LisaDLu]

Thanks! How about timing? Can I add salt, CYA, and acid on the same day? A couple hours apart?

 

[Divin Dave]

Hi Lisa,
go ahead and do your pH first and wait 30 minutes.

Doesnt matter which of the others you add first, and you can do one immediately after the other.