First test with new kit

I just tested my pool with Ben's SP234. I have an inground liner so I didn't bother with CA levels. Here are the levels, what should I do next?

TC 26
FC 1
CC 25
PH 7.8
Alk 140
CYA 33

You better superchlorinate to get rid of that combined chlorine! Are you sure that reading of 25 is right?

Other than the CL, the other readings look OK.

I feel certain these readings are in error - probably only have a CC reading of 1, not 25. Please retest and repost with chlorine readings.

Your right, I redid the tests this weekend and here are the results:

Saturday
FC 7
CC 0
TC 7
PH 8.2
Alk 140
CYA 40

I backwashed and added water and dry acid and tested last night

FC 6
CC 0
TC 6
PH 7.2
Alk 140
CYA 30


Did I add too much acid, should I add some Borax? Thanks for all your help

Your pH of 7.2 is fine...the range to shoot for is 7.2 to 7.6 with the lower end being a bit better because it allows the chlorine to work more effectively. I would not change it unless the pH drops below 7.2. You don't want to go below 7.0 with a vinyl liner.

I agree with Evan, except that I feel the pH normal range is 7.3-7.8. Neither is wrong, just different emphasis on different things.

HOWEVER, what you CAN do (and it's really easy now) is aerate your water and the pH will rise without doing anything else...A crowd of boys splashing works GREAT as an aerate.

Otherwise, your water is perfect! Go Swimming!!!!!!

(PS: I'm guessing you have a vinyl pool. For concrete, your T/A is a tad high, but for vinyl or fiberglass, DON'T FIX IT, IT AIN'T BROKEN!--C)

[quote=CarlD

(PS: I'm guessing you have a vinyl pool. For concrete, your T/A is a tad high, but for vinyl or fiberglass, DON'T FIX IT, IT AIN'T BROKEN!--C)[/quote]
And I agree with Carl on this! Enjoy your pool!