Chlorine block-need recommendations

[Jess6521]

Ok. I thought you meant in addition to the evening dose. We'll continue the evening doses.

[Jess6521]

My dichlor came in. Should I replace the uv shield with this in the skimmers? (in sock) thanks!

[PoolDoc]

Yeah. If you are using dichlor, you don't want to be adding stabilizer in another form.

[Watermom]

Keep an eye on your CYA level. For every 10ppm of chlorine that dichlor adds, it also adds 9ppm of CYA.

[Jess6521]

New updates! Lol. Our FC is at 7 ppm, CC-0. Ph is at 8.0 my acid demand test indicated about 2 qts of muratic acid..thoughts? TA is at 150, CYA is at 100 and calcium hardness was 450. I can't figure out how to reduce the cya and FC ?

[PoolDoc]

Hi Jess;

1. Read the Best Guess chart linked in my signature; adjust your chlorine levels accordingly. You do NOT want to reduced FC!!
2. Stop using CYA containing chlorine; use PLAIN 6% (ck %) household bleach or cal hypo.
3. If you want to use cal hypo, ask for specific instructions -- otherwise your calcium level will go sky-high.
4. Add acid, 1 *unmeasured* quart at a time. Lower the pH to 7.8 or below. What is your TA level?

[Watermom]

Ben, in the previous post, Jess noted TA of 150.