New liner just installed. Where do I begin? Is there any point in testing water first or just start adding bleach, etc based on poolmath? Obviously there is no chlorine yet. I have been using BBB method but not with new liner install. I have a TF-100 test kit. Thanks!
Advice please, first time opening with new liner using BBB method
- Thread starter JennB
- Start date
It is always good to start with test results. But we know that the CYA is 0 and we know that the FC is likely 0 (unless you have some in the tap water). So you could add 2ppm of FC and get the CYA dissolving before you test. You do want to check and adjust the pH, TA, and check the CH if even for reference of where you started.
OK test results:
FC 0
CC 0
TA 30
CYA 0
PH 7.5
It looks like I have some work to do. What are your thoughts on using the tablets to add CYA instead of buying stabilizer? I just have some on hand - Aquachem Tabs Plus
FC 0
CC 0
TA 30
CYA 0
PH 7.5
It looks like I have some work to do. What are your thoughts on using the tablets to add CYA instead of buying stabilizer? I just have some on hand - Aquachem Tabs Plus
You can use tablets ... they are just slow to add the FC and CYA.
If you are going to use them, since they are acidic, you should raise your TA up to around 100ppm.
If you are going to use them, since they are acidic, you should raise your TA up to around 100ppm.
Start by raising your TA, up to around 80 for liquid chlorine/bleach, or 120 if you are going to use tablets.
Tablets have pros and cons, usually the cons outweigh the pros. I would save them for when you are going to be away from the pool for a few days. Tablets raise CYA very slowly, so you need at least some CYA to start out with either way.
Tablets have pros and cons, usually the cons outweigh the pros. I would save them for when you are going to be away from the pool for a few days. Tablets raise CYA very slowly, so you need at least some CYA to start out with either way.
Just to be clear. I will go ahead and add tablets to dispenser, then raise TA. Should I add the 72oz bleach recommended by calculator since tablets take a while?
OK got it. Forget the tablets! Raise TA to 80, then add bleach and go get some stabilizer. Sound good? Thanks for everything.
This is certainly the easier to understand path forward. The tablets just do too many things and can get confusing. Holding them for a vacation is a good idea.
Yes I agree. I still have some pre-bbb method thoughts that need to be eradicated from my brain...
Last question, I promise...maybe
Should I add half the amount of baking soda at a time since it's a big increase? If so, what is waiting time to retest and add the rest?
Last question, I promise...maybe
Should I add half the amount of baking soda at a time since it's a big increase? If so, what is waiting time to retest and add the rest?
That would be a prudent plan. Give it at least 30 minutes to circulate and then you should be able to retest.
Updated test results today
FC 4
CC 0
TA 70
CYA 28 - ignoring for now, since stabilizer was added yesterday
PH 7.4
I could easily shoot for perfection, but my gut tells me to hold tight until I retest CYA in a few days. Thoughts?
FC 4
CC 0
TA 70
CYA 28 - ignoring for now, since stabilizer was added yesterday
PH 7.4
I could easily shoot for perfection, but my gut tells me to hold tight until I retest CYA in a few days. Thoughts?
Looks fine. I would might bump up the FC by 1ppm so it does not drop too low by tomorrow.
Done. I must say how nice it is to get out a measuring cup for bleach. Last year I never had that experience!
Sorry I missed you coming on Jenn. It sure sounds like you have it going your way. 
Welcome to the forum!
Welcome to the forum!
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