# Rookie here. All was great until a few days ago.....

#### mknauss

TFP Expert
Bronze Supporter
Great job on the tests. No need for calcium, you have a vinyl liner pool.
Help me understand how you measured a TA of 111? A 25 ml water sample will result in a value of 100, or 110, or 120, but no way can you get 111.
Your CYA is in a fine spot. NO more solid chlorine. Liquid chlorine only.
Raise your FC to target using liquid chlorine. See FC/CYA Chart

#### fwild

##### Active member
Great job on the tests. No need for calcium, you have a vinyl liner pool.
Help me understand how you measured a TA of 111? A 25 ml water sample will result in a value of 100, or 110, or 120, but no way can you get 111.
Your CYA is in a fine spot. NO more solid chlorine. Liquid chlorine only.
Raise your FC to target using liquid chlorine. See FC/CYA Chart
between 110 and 120 that is what husband said

#### fwild

##### Active member
okey dokey.
just read my notes again for TA and it is 120. not sure where 111 came from!!!

mknauss

#### fwild

##### Active member
so FC minimum should be 4 with ideal 6-8. i just need guidance as to how much liquid chlorine to put in today

#### Oly

Gold Supporter
Nice work. Do you use pool math? Here is the web version, PoolMath plug in your numbers Now/Target and see what you get?
Well on your way now to a trouble free pool.

#### mknauss

TFP Expert
Bronze Supporter
A half gallon of 10% will add 10 ppm FC. Add that today. Then, at about the same time every day, test your FC, and add enough liquid chlorine to reach 8 ppm FC. Use the Poolmath app you have to calculate how much liquid chlorine that is.

#### fwild

##### Active member
A half gallon of 10% will add 10 ppm FC. Add that today. Then, at about the same time every day, test your FC, and add enough liquid chlorine to reach 8 ppm FC. Use the Poolmath app you have to calculate how much liquid chlorine that is.
done! THANK YOU!

mknauss

#### fwild

##### Active member
Me again, here are today's readings
FC 4
CC 5.5
PH 7.5
TA .90
CH .50
CYA 55
TEMP 76
CSI

I know i need to add liquid chlorine and my CYA is good, what about the TA, i have some Alkalinity Up from Leslie's. Do I add that? or baking powder? or do i need to get Muratic acid?

#### mguzzy

Gold Supporter
Don't worry about the TA, you are within range. it will adjust as you make changes to the pH. ... by they way don't buy the stuff from Leslie's, its over priced. check this out:

#### Oly

Gold Supporter
Watch your pH and CSI on how to proceed. Your TA will settle in and find its balance. If your fill water has a high TA then expect a slight pH rise when you add fill water. When pH rises to 8 bring it down with muratic acid, simple. Begin to experience the trouble free pool experience, enjoy.

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#### fwild

##### Active member
Don't worry about the TA, you are within range. it will adjust as you make changes to the pH. ... by they way don't buy the stuff from Leslie's, its over priced. check this out:
yes, figured out they are too pushy

#### fwild

##### Active member
thanks everyone, so what do i need to add bar the chlorine? anything?

#### batesjer

Gold Supporter
Silver Supporter
You have your CC(combined chlorine) as 5.5 which hopefully is wrong. Is that supposed to be TC, which we don't really use here. Just list your FC and then CC. Is your CC 5.5 or 1.5?

#### fwild

##### Active member
also what is this? they sold it to me

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#### fwild

##### Active member
You have your CC(combined chlorine) as 5.5 which hopefully is wrong. Is that supposed to be TC, which we don't really use here. Just list your FC and then CC. Is your CC 5.5 or 1.5?
FC 4
CC 1.5

#### mguzzy

Gold Supporter
also what is this? they sold it to me
It is a chemical that will precipitate out solids.. Must of the time it will just gum up your filters. You don't really need it, we don't recommend it. Can you return it?

#### Oly

Gold Supporter
Also you are listing your CYA now as 55? There is no 55 for CYA it is either 50 or 60. Keep your FC in the target range and anticipate high demand not letting FC fall below minimum ever. FC/CYA Chart

#### fwild

##### Active member
It is a chemical that will precipitate out solids.. Must of the time it will just gum up your filters. You don't really need it. Can you return it?
yes!