Adding CYA, want to use dichlor, math help.

[Stressed_era]

Been filling my pool a lot last couple weeks, it's been dry and windy.

Cya is down to around 30 but I think less than 30. I'd like to bump it up 10ppm . I have 1lb of 99% dichlor and I also have dry stabilizer. Dichlor would be easier to just add it to the pool no pre mixing.

Pool is 7600 gallons. I think the one pound of dichlor should be fine. Just looking for reassurance.

I also have 63% cal hypo.

 

[mknauss]

One pound of dichlor will raise your FC 8.7 ppm, CYA 8 ppm, and lower pH ~0.3

Not sure what you mean about pre-mixing. There is no pre-mixing with dry stabilizer. Put it in a sock and hang in front of a return or put in the skimmer.

 

[Stressed_era]

One pound of dichlor will raise your FC 8.7 ppm, CYA 8 ppm, and lower pH ~0.3

Not sure what you mean about pre-mixing. There is no pre-mixing with dry stabilizer. Put it in a sock and hang in front of a return or put in the skimmer.

I was going by the directions on the bag. Says to mix in warm water and add skimmer.

 

[mknauss]

I was going by the directions on the bag. Says to mix in warm water and add skimmer.

Add the CYA by using what we call the sock method. Get an old sock (no holes) and put the measured amount of CYA you need. Tie the sock closed and either suspend it in front of a return (hang it from your brush pole works with something weighted on the deck) OR if it still allows flow thru the skimmer, place the sock in the skimmer. Every 15/20 minutes give the sock a squeeze to speed up the process. Please DO NOT follow the directions on the container of CYA to just pour it into the skimmer and don't just toss the sock in the pool as the CYA is acidic and can bleach/stain pool finishes.

 

[Stressed_era]

Thanks. Is there any reason I shouldn't just use the dichlor? Other than maybe pH decrease? My pH is 7.4 so it shouldn't be an issue, I'll just turn the jet up to the surface to aerate.

 

[mknauss]

What is your TA?

 

[Stressed_era]

95

 

[mknauss]

Use the dichlor. Be sure it fully dissolves.

 

[Stressed_era]

Use the dichlor. Be sure it fully dissolves.

How do I do that lol? I always just sprinkled it in around the pool like the dichlor faery. Just started BBB this season.

 

[mknauss]

You can sprinkle it like you always have. Just be sure it fully dissolves. It will stain the surface if it sits on it.