Above ground pool filled

elier99

Bronze Supporter
Sep 18, 2019
23
Puerto Rico
Hi all. Finally today we started filling the new pool. Dry stabilizer was added during the filling up process. 8.25% Liquid bleach was added and the water manually stirred since the skimmer and pump is not installed yet.

Below the water current levels:

FC: 4.0
pH: 7.5
TA: 170
CH: 175
CYA: 30

Tomorrow the skimmer, pump and filter are being installed. Will measure again tomorrow after the pool is completely filled. Any comments or suggestions are welcomed.
 

YippeeSkippy

Mod Squad
LifeTime Supporter
Jan 17, 2012
13,053
Evans, Georgia
None whatsoever! You're on the right track for sure!!
Make sure you brush the pool to keep it well circulated until the pump is doing that job.
Good job getting the TF-100.... have you played with PoolMath yet?

Maddie :flower:
 

YippeeSkippy

Mod Squad
LifeTime Supporter
Jan 17, 2012
13,053
Evans, Georgia
Having second thoughts... did you put your CYA in a sock hanging over the edge or did you toss it into the water directly? If so brush! Brush! BRUSH! to get it dissolving. I wouldn't want the acidic CYA to put little bleach type marks on your new liner.

While your TA is apparently high, it can be dealt with once we see what your pH does with it.

Maddie :flower:
 

elier99

Bronze Supporter
Sep 18, 2019
23
Puerto Rico
Now the pool is completely filled and the pump is running.

Below the latest readings:

FC: 1.0
pH: 7.5
CYA: 20

8 oz of CYA added and then 20oz of 8.25% bleach added to raise FC to 4ppm as recommended by PoolMath.

Everything looking good so far.
 

elier99

Bronze Supporter
Sep 18, 2019
23
Puerto Rico
I haven’t measure the water temp but the weather was about 80° F. I waited about an hour after putting the CYA to dilute the bleach. Is this enough time?
 

elier99

Bronze Supporter
Sep 18, 2019
23
Puerto Rico
pH just hit 7.8 today. At what level should I put Muriatic Acid?

Also, FC is at 1.5 FC in the evening, should I raise the FC target from 4.0? Recommended level with my CYA of 30 is from 2 to 6 FC.
 

ajw22

Gold Supporter
TFP Guide
Jul 21, 2013
16,538
Northern NJ
The FC/CYA Chart chart shows 2 as the minimum FC level and 4-6 as the recommended level. That ensures your FC does not fall below the minimum.

Many folks stay at the high end of the recommendations.
 

elier99

Bronze Supporter
Sep 18, 2019
23
Puerto Rico
Targeting 6.0 worked, today FC level was at 2.0 even after a heavy rain.

Water level is now on the high side. I never imagined the water level would increase so much with rain water.
 

elier99

Bronze Supporter
Sep 18, 2019
23
Puerto Rico
I increased the CYA to 40 from 30 trying to reduce the amount of FC loss during the day. FC level was increased to 7.0 yesterday evening but was at 2.5 this evening. Is it normal to loose 4.5 FC in a sunny day? Could I be doing something wrong? Pool water is crystal clear and CC is 0.5.
 
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elier99

Bronze Supporter
Sep 18, 2019
23
Puerto Rico
OCLT passed, there was no FC drop during the night. It was 6.5 at 9PM last night and it is 6.5 today at 5AM. CC continues to be 0.5. Please let me know any other suggestion.