drkirk
Welcome to TFP!
drkirk said:
New readings are: FC .02, TC .1, Ca+ 322, CYA 0, TA 128, pH 7.8, Diss solids 1000, phosphates 20.
What are you using to test with, or are these results from a pool store? Some of these numbers look a little suspect (CYA and TA are usually in multiples of 10 and FC & TC are usually in increments of 0.5 ppm). BTW, Dissolved solids and phosphates are irrelevant, so don't worry about those.
drkirk said:
Been told to add the CYA @ 13 fl oz every couple of hours up to a quarter gal, then shock. Your advice?
This sounds like it came from a pool store. Agree you need to add CYA, but would suggest using the
Pool Calculator to figure the dosage. Also, is your pool manually chlorinated or do you have a SWG? If manually chlorinated, I would aim for an initial CYA of 30 ppm. For your 8,000 gallon pool, this would require 32 oz. by weight of granular stabilizer/CYA. If SWG, then aim for an initial dose of 60 ppm (64 oz by weight of stabilizer/CYA for your pool). Suggest adding the CYA to an old sock, tie it off, and place it in the skimmer. It will take several days for the CYA to dissolve and up to a week before it will register in test results.
As for FC...until we figure out how you are testing, I would add an initial dose of between 3-4 ppm chlorine to keep the pool clean. Using 8.25% liquid bleach, you would add between 36 - 48 oz. You will need to test FC levels daily since FC is consumed by sunlight and needs to be replenished. Also, shocking is a process and not a 1-time addition of a "shock" product as the pool stores would have you believe. You may not need to shock unless test results dictate the need for it. Since you just filled the pool, it is too early to determine that.
I would suggest reading all
Pool School articles, but would start with these:
ABC's of Pool Water Chemistry,
Basic Pool Care Schedule,
Recommended Pool Chemicals,
How to Chlorinate Your Pool,
Chlorine CYA Chart,
Shocking Your Pool.
If you don't already have one, you will need a good test kit to properly manage your pool. Here is a comparison of the recommended
Test Kits
Finally, couple of things to help us help you...
- 1. Please include the state and nearest city in which you live in your profile. Your climate is important to the advice you receive. By doing this, it will appear in all your posts without you having to enter it each time.
2. Suggest adding information about your pool and related equipment in your signature. By doing this, it will automatically appear in all your posts so you do not have to re-enter it each time. If you have a SWG, please include those letters in your signature so it stands out as the advice for SWG vs. non-SWG is often different.
Here's how to do both of the above:
Adding location to your profile and pool info to your signature.