Help please ...out of balance

[Slq]

After 2+ weeks of California fires and unhealthy high AQI air quality and unable to go outdoors, I'm trying to rebalance my pool. There is algae and here are my test numbers.
FC 1
CC .5
pH. 8.1
TA. 130
CH. 300
CYA 20 (prior was 40. Never been this low?)
Could be ash film floating on surface.
Thanks...Sharon

 

[PoolGate]

Doesn't look too bad. Do a SLAM, add some CYA and Muriatic. Clean the filters!

 

[Slq]

I'm familiar with lowering CYA..not raising. What is needed?
I'm using 10% liquid chlorine or bleach 6% to raise FC.

 

[Chasarms]

CYA is sold as "stabilizer" wherever you buy pool supplies. It comes in both dry and liquid forms. Liquid is significantly more expensive.

 

[clduncan]

Get the one in the powder form use an old sock and tie to a skimmer and let it dissolve. You can go squeeze the sock every now and then to speed the process up.

 

[BowserB]

You can also put tabs in a floater. The tabs add both chlorine and CYA. In your case, you'd still need a bunch of liquid chlorine to get started, though. Keep checking CYA until it reaches your goal.

 

[PoolGate]

I'm familiar with lowering CYA..not raising. What is needed?
I'm using 10% liquid chlorine or bleach 6% to raise FC.

To go from 20 to 50 in you need 56oz or 3 1/2lbs of CYA granules. Something like this -> Amazon.com : Pool Mate 1-2607B Stabilizer and Conditioner for Swimming Pools, 7-Pound : Garden & Outdoor

You need to SLAM first (before adding CYA) -> See here what to do -> SLAM - Shock Level and Maintain - Trouble Free Pool

 

[Slq]

Guess I raise the CYA before SLAM so the FC target will be higher.
Any idea why CYA got so low?
Earlier this year I had to do a water exchange to lower it. I was finally happy it was in normal range.
Also..this morning there was small white bubbles or slushy foam on surface. Sunlight has helped tho and it's better. Any thoughts of its cause.
Thanks.

 

[Slq]

You can also put tabs in a floater. The tabs add both chlorine and CYA. In your case, you'd still need a bunch of liquid chlorine to get started, though. Keep checking CYA until it reaches your goal.

Can I use the 3" tablets in floater to address CYA while using liquid chlorine for SLAM process. Do they mix okay?

 

[PoolGate]

Do the SLAM first, then when you pass that, add CYA. Don't add it before you start it will just increase your chlorine for the SLAM. Take another test or 2 before adding CYA to ensure your test results are accurate.

I would not use pucks at all just use liquid chlorine/bleach. Use pool math to determine how much to add.

 

[Chasarms]

Also..this morning there was small white bubbles or slushy foam on surface. Sunlight has helped tho and it's better. Any thoughts of its cause.
Thanks.

Are you using chlorine labeled as bleach and sold in a grocery or discount store? If so, make sure there are no additives. Lots of those types of bleaches have additives that can cause foaming.

 

[Slq]

I'm using Tf 100 kit. Haven't used any bleach with additives only liquid chlorine from Home Depot while in SLAM.

 

[Slq]

Shall I continue SLAM and deal with CYA later?

 

[Newdude]

Dave, what are your thoughts on the CYA ? 20 would be plenty for me in NY with the late season sun, but might not be enough for San Jose. Should she let it be or go to 30 ?

 

[Slq]

Temp currently 82°/feels like 84°.

 

[mknauss]

I would suggest you add 10 ppm worth of CYA and start the SLAM Process at 30 ppm CYA or 12 ppm FC SLAM level.

 

[Slq]

Temp currently 82°/feels like 84°.

OP] loop[A

I would suggest you add 10 ppm worth of CYA and start the SLAM Process at 30 ppm CYA or 12 ppm FC SLAM level.

Ok thanks. Ordering the stabilizer and additional liquid chlorine!

 

[Slq]

OP] loop[A

Ok thanks. Ordering the stabilizer and additional liquid chlorine!

Pool is still green after 72hrs nonstop filtering. Brought cya up from 20 to 30 (Sunday) and started SLAM. Keeping at target slam level. Brushing daily multiple times. Still green!? About to backwash and check filter grids. Help I need a break from green. Any advice pls?

 

[Slq]

As of this afternoon results..pls note cya is at 40 w/16 as new FC Slam level.
FC 11.5 ppm
CC 1
TA 120
CH287
CYA 40

 

[mknauss]

How many times each day are you testing FC and adding chlorine?At least 3-4 times per day at this stage. More often the better.