Testing tap water on my new Pool.

[Strictly BBB]

This is a new pool no chemicals have ever been added to it. And I want to only use the BBB method.
My test results of the city tap water that is in the pool.(Sample taken at elbow depth)
PH 7.5
TA 100
CH 120

I did not test FC, CYA because the city water had been in the pool for a month before I tested it.

1st question is: Should I test for CYA in my city tap water from the pool?

2nd question: Should I add the CYA and let dissolve before adding any chlorine? (I am thinking about using 30ppm CYA)

3rd question:We have a month until people start swimming in their pool in my area.The water temp in my pool is 60 degrees. What chemicals/tests are effected by colder water temps? I know water for CYA test must be warmed to 70 temp before testing. Any other chemicals or tests that are effected by cold water?

4th question: I am using a liquidator it needs PH 7.2-7.6, TA 80-100 (My numbers are at the high in of that range.) Should I go ahead and add acid to lower both PH(To 7.0) and TA and then aerate to bring the PH back up to 7.3?

I have been reading TFP this past winter, it has been a great help. It has helped me with what equipment to buy, chemicals to use, and helpful tips to install the pool.

Thanks for all the helpful info.

 

[frustratedpoolmom]

Don't test for CYA.

You can add the CYA (via sock method) simultaneously as you are adding chlorine. Alternatively, you can use tablets in a floater to raise CYA slowly over the next month while adding chlorine, since it's cold out the FC should be able to keep up. That's up to you, however. CYA and tablets are slightly acidic, and will cause the PH and TA to drop with use.

I wouldn't worry about that tho - the PH and TA are fine at the levels you posted.

 

[JohnT]

This is a new pool no chemicals have ever been added to it. And I want to only use the BBB method.
My test results of the city tap water that is in the pool.(Sample taken at elbow depth)
PH 7.5
TA 100
CH 120

I did not test FC, CYA because the city water had been in the pool for a month before I tested it.

1st question is: Should I test for CYA in my city tap water from the pool?

No. There won't be any.

2nd question: Should I add the CYA and let dissolve before adding any chlorine? (I am thinking about using 30ppm CYA)

You should add both. It will take a while to get the CYA dissolved, but you want to get the chlorine started now too.

3rd question:We have a month until people start swimming in their pool in my area.The water temp in my pool is 60 degrees. What chemicals/tests are effected by colder water temps? I know water for CYA test must be warmed to 70 temp before testing. Any other chemicals or tests that are effected by cold water?

Not substantially.

4th question: I am using a liquidator it needs PH 7.2-7.6, TA 80-100 (My numbers are at the high in of that range.) Should I go ahead and add acid to lower both PH(To 7.0) and TA and then aerate to bring the PH back up to 7.3?

I wouldn't worry about the TA at 120ppm unless you have issues with your pH rising constantly. Rainwater and acid additions will make it tend to drop over time for most people.