Help with shocking

[skydiva44]

I was in the middle of shocking last week and getting no where because my pump was not working properly. I ordered a new bigger pump got it installed but couldn't get it to work for 3 days, so there the green water sat. I poured a jug of bleach in and brushed often, because I had no chlorine in the pool at all it was at zero! Finally got pump running last night. My FAS-DPD last night was 16.5, this morning it is 15, so I did lose some.

Today's test results"

PH - 8.2
TA - 220
CYA - 30
FAS-DPD - 15

Clearly I need to add dry acid to bring down PH. I have a SWG so there is no scale for a CYA of 30 so I am going by the non-SWG chart which means Shock should be 12 and mine is 15, but I DID lose some of that overnight, so should I let it get down to 12 and hold or add more bleach? What chart should I go by?

This morning I can already see a difference in the color of the water, heading in the right direction.



Thank you and Happy Easter!

 

[Butterfly]

Shock level is based on CYA level. So, with a CYA of 30, your shock level is about 12, as you said.

The difference in the non-SWG and the SWG FC/CYA charts is the Min and Target FC levels.

The shock level is the same based on the CYA

Happy Easter to you, too!

 

[skydiva44]

So are you saying I should just keep it at 12 to hold, even though I know I lost some overnight?

 

[Butterfly]

First, I suggest you let your FC drop to below 10 , then re-test the pH and adjust to the mid 7's.

Second, continue shocking to about 12.

You lost more than 1 ppm last night, which means the pool failed the overnight test and you need to continue shocking.

But, it doesn't sound like you are too far away from a sparkly pool :-D

 

[PaulR]

What Butterfly said. FC above 10 starts to interfere with the pH test, that's why you should let it drop before making sure the pH is okay.
--paulr

 

[Suziqzer]

Thanks all.. I'm a newbie too and this is some good info to have my hands on!

 

[skydiva44]

Is this normal or ok while shocking for the numbers to change from zero and go back up.... especially with the cc in a two hour time span?


10:00 a.m.

PH - 7.5
TA - 180
CYA - 40
FC - 14.5
CC -0

1:00 p.m.
FC = 14
CC - 1.5
TC - 15.5

2:15 p.m.
FC - 14
CC - 1
TC - 15

This is taking forever for it to hold overnight.....

 

[frustratedpoolmom]

The CC - are you confident it's not a testing error?

 

[skydiva44]

Pretty confident.....I just had to add drops of the #3 and count, then multiply times .5 right? It has either taken 1 , 2 or 3 drops at the most...

 

[frustratedpoolmom]

Yeah, that's it. I just wondered if the pink portion of the FC test is complete before you are starting the CC test. Is the solution staying clear for like 10 seconds before you begin the CC portion?

 

[skydiva44]

Yes....I'm going to redo it again and see if I wait a bit longer if I come up with something different

 

[skydiva44]

I did the test again on the same water, still had some left in my sample bottle and got the same results.....

 

[frustratedpoolmom]

Have you replaced the cartridge? This is a metal framepool, right, not the inflateable kind?
I don't know if this is normal, I'd be guessing at this point which I don't want to do...

 

[skydiva44]

Yes, cartridge replaced, it's a brand new pump and no not metal, easy set with blow-up ring.


Edited to add: There is not a great suction going on, so I am going to take it apart and see what the problem is.....could answer alot of questions about the problem I am having.....There's no emoticon for pulling out hair!

 

[frustratedpoolmom]

Ok, while you look into that.... have you scrubbed under the ring at the water line - I know icky stuff can get caught in that crease...

I guess this is as close to that as I can get:

 

[skydiva44]

Yes...I did that this past weekend....full of pollen! I can always do it again....thanks FPM!

I don't know if you are monitoring the ABG thread, but I posted a question there about removing the suction part that is in the pool, I have no plug and water of course is gushing out....how do you do that on your ABG pool?

 

[frustratedpoolmom]

Yes, try scrubbing that area again, that could be the lingering CC...reason for the FC not holding.

 

[skydiva44]

please see my last post again, I added a question

 

[PaulR]

I believe Taylor says the tests are correct to 1 drop in 10, so answers plus-or-minus 1 drop are nothing to worry about. Your CC results vary more than that (0 to 3 drops) but if the FC is finding something to chew on, that could produce CC. Given that you said it still isn't holding overnight, it's not hard to imagine it's still consuming something during the day as well.
--paulr

 

[skydiva44]

Ok it's been a week since my FC held overnight, the water started turning that milky color bluish/gray and I thought I was on my way to a sparkly pool by now. Not....it actually looks as if it is turning green again. Pump has been running 24/7 for the past 3 weeks, I check the filter everyday and change when needed. I vacuum, brush and still it is not clearing. I was starting to see the bottom of the pool 2 days ago but now I can't. My question is could it be mustard algae and I haven't been hitting that shocking target of 29? My cya is 50 so my shock was 20 which is what I did. Also, I did another overnight test last night and I didn't lose any FC so I am puzzled at what to do at this point.

I know I need some POP...but it is concerning me that It is regressing back to the green instead of clearing up...any thoughts or ideas?

I did let the FC drop down to 6 and I adjusted my PH to bring down my TA.....Thanks!