No pH

Mme

Active member
May 21, 2016
31
Saltillo, MS
#1
I am so confused. I just don't know where to start. Pool has iron stains and I have purchased ascorbic acid powder to treat along with a sequestering agent. I began checking water chemicals with Taylor Kit 2006. But didn't get very far. FC=11.5 and the pH was off chart with yellow colored water which 30 drops of the test agent did not change at all so I quit!

Memorial Day weekend is when all the children and grands will be here to swim. I need to get this pool in shape before then.
 

Mme

Active member
May 21, 2016
31
Saltillo, MS
#4
Analysis tonight:
FC = 8
CC = ?? couldn't get reading; sample did not turn pink after adding 5 drops of R0003
pH = still off chart yellow; took 34 drops of R0006 in Base Demand Test to reach 7.0 color
TA = 25
CYA = 7.0

I did add 13 lbs soda tonight before testing.
 

pooldv

Mod Squad
TFP Expert
Platinum Supporter
LifeTime Supporter
Aug 10, 2012
24,993
DFW, TX
#5
How long did you run the pump after adding the baking soda before testing TA? Test TA again in 30 minutes or so and add enough baking soda to raise TA to 60.
 

Mme

Active member
May 21, 2016
31
Saltillo, MS
#10
Sorry. I've been out of town.
Readings now:
FC = .6
Cc= .2
pH = 7
TA= 90
CYA = 7

Had little staining so I've treated with ascorbic acid. Waiting to add sequestrant. Then what??
 

Mme

Active member
May 21, 2016
31
Saltillo, MS
#11
Pool was cloudy. Husband tried to vacuum and lost 6 inches of water; thus, had to add water. Pool began looking a tad green or teal. Shocked with 3 pounds shock last night. This morning FC = 1 but CYA is 140!!!! Grands are here to swim!
 

AftonJeeper

Bronze Supporter
May 11, 2017
1,147
Twin Cities, MN
#12
Don't use "shock" or any other solid or powder form of chlorine, they add CYA to your pool. Only use unscented bleach or chlorine, they do not increase you CYA. The correct way to get rid of algae is to SLAM the pool. You will need to add chlorine to bring you FC up.

Well water or city water?
 

Donldson

TFP Expert
LifeTime Supporter
In The Industry
Jun 12, 2009
3,285
NW Ohio
#13
CYA went from 7 to 140? Neither of those numbers are on the CYA view tube, how are you measuring it?

An ounce of prevention is worth a pound of cure, TFP has fantastic guidelines and calculators and everything available to keep situations like this from ever happening in the first place. It is, however, up to each person to decide whether to follow any of it. Your pool turned cloudy because the FC was too low for the CYA, nothing unusual about that. Unfortunately there is not much you can do now that can get your pool in swimming condition for the weekend.
 

Mme

Active member
May 21, 2016
31
Saltillo, MS
#14
It is city water but full of iron. Ascorbic acid arrived today.

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I know y'all say TFP is easy but it is not for the amateur. I have been working on this pool for a month and I still can't get it right. I will say I was not reading the CYA levels correctly, but it took me this long to figure that out. So the 7 level for CYA was not right to begin with.
Took reading this afternoon of FC = 2 and CC = .4? Thank you for an help.
 

pooldv

Mod Squad
TFP Expert
Platinum Supporter
LifeTime Supporter
Aug 10, 2012
24,993
DFW, TX
#15
There is definitely a learning curve at first. Hang in there, it gets easier. Way easier.