Adjusting pH and CYA in SWG pool

[IMason]

Good day pool owners!
So far we have been loving our new pool. It's just the loveliest thing ever. My balance was pretty good but then started to falter a bit.

Numbers to follow but to cut to the chase, I have to increase my CYA and lower my pH. Do I attempt both at the same time? Do one and then the other? And if so, in which order?

FC 6
CC 0
pH 8!
TA 80
CH 350
CYA 50-60 (I have trouble with this as I think my eyes are super good!!)
Salt 4200

I am trying to get my CYA to about 70-80 and pH down to 7.5. I have granular CYA and I was going to use Muriatic acid.

Thanks in advance for the advice.

 

[Richard320]

Go ahead and do both back-to-back. The CYA takes so long to dissolve that you can skip the usual wait between chemical additions. Remember, CYA in a sock before it goes in the skimmer, acid dribbled in front of the return jet.

 

[needsajet]

No worries Always correct pH as a priority. Correcting to 7.6 or 7.7 is fine, you just want it between 7.5 and 7.8 inclusive.

If you add a lot of CYA at once, it will lower the pH a wee bit as well. Before you raise CYA, be confident that there's no sign of algae. Personally I like to do an OCLT before raising CYA a lot. It's easy to do and good insurance.

 

[IMason]

thank you thank you all!
So my husband has some muriatic acid at home (for cleaning concrete or something). The only information in terms of concentration I can find is 20%. Nothing similar to what I see on poolmath in terms of degrees etc. can I use this and do I just approximate around the amount for the 15% acid amount on poolmath?

 

[needsajet]

Your suggestion is very likely to be fine, but perhaps look it up online by googling the brand name and muriatic. That should tell you for sure. PoolMath has some options very close to 20% if that's what it is, but I'm also wondering if you're seeing 20^o Baume?