1st test results : under shock

dswilli2

Active member
May 29, 2019
29
CT
So test strips remain well above the 10ppm last 5 days. Water getting clearer and mild green blue now.

When kit arrives, I want to immediately test chlorine and cya. Figured oh will remain high with shock (bleach)

Any recommendations on other tests? Want to post for everyone in 2 days when kit arrives
 

dswilli2

Active member
May 29, 2019
29
CT
Thanks. I’m hoping I didn’t over do it with chlorine. Have a small above ground 5k. Water was pitch black and I added 6 bags of shock powder. Strips showed it at 10 and two days later was down to 2ppm. Very very dark green. Added a gallon of super shock liquid chlorine (over6%) recommended for for 10k pool. No change in green color ? Level of cya reading was unclear. Strips suck. Another day went by and still no change. Out of frustration I put in two gallons more of shock....overkill probably with no knowledge of this forum.

Results were that the pool began to clear up. A blind slam I guess. Like everyone says, chlorine works...I’m sure the algae is all dead and it’s time for filter to work but I am certain cya is out of wack as well as other things

Can’t wait for this kit! The T100 was all sold out at amazon so I got the other K2006 that was available in prime.
 

Msch99

Gold Supporter
Bronze Supporter
Jun 11, 2018
166
Verona, MO
Was it the k2006 or k2006c? If k2006 you will run out of reagents quickly I am told. (Smaller bottles) The c version has more.
 

dswilli2

Active member
May 29, 2019
29
CT
I know but 06c would take 15 days to deliver so I got the 06 via prime to come sooner. Figured I can find refills once I know what to refill
 
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dswilli2

Active member
May 29, 2019
29
CT
PH not tested due to shock
FC. 35 ppm
CC .5
TA. 40 ppm
CYA. 110 to 120. Was just above the 100 mark so I estimate
CH. 100

5000 gal vinyl pool

Slammed it too hard I guess pre test kit
 

dswilli2

Active member
May 29, 2019
29
CT
PH purple. Lol

FC. 35 ppm
CC. .5 ppm
TA 40 ppm
CH. 100 ppm
CYA: 110 or 120. Was a little over 100 mark when dot completely disappeared.
 

Donldson

TFP Expert
LifeTime Supporter
In The Industry
Jun 12, 2009
3,723
NW Ohio
You might want to sit down for this one: At your CYA level your FC is not even at SLAM level. A SLAM at 120 CYA (not something we would ever recommend, but in theory) would require 48 ppm of FC.

With that sized pool the simplest solution would be to dump all but a foot of it and refill. This will bring your CYA down to more manageable levels and simplify the rest of the equation.
 
Last edited:

dswilli2

Active member
May 29, 2019
29
CT
Thanks. Trying to convince my wife to drain. We have well so it’s just electric cost and wear on well pump... or I can get the water delivered for $275. May just do that. Takes longer to drain than fill by delivering it. It’s small so not a big deal in my view. And still early. Spent $30 on chlorine and shock so far so no biggie

2 years of hockey puck tabs for chlorine probably did this with only 5k gal.
 

dswilli2

Active member
May 29, 2019
29
CT
Just read that test for cya needs to be with done back to full sun so I’m going to retest tomorrow. Folks said it’s hard to get right. FC is 35 and pool was black last week with no added chlorine in 7 days and kept getting better so I’m hoping I did test wrong and it’s a lower cya.

I used the pool calculator and realized that 3 gal of 12.6% bleach raised it by 75ppm and before that I added 6 bags shock powder. Assuming 80 ppm on sat so in 7 days it went down by 1/2. Lots of clouds and rain and 1 day of sun
 

jimbethesda

Gold Supporter
Jul 2, 2018
165
Austin, TX
With CYA at or over 100, you need to do a diluted CYA test to get an accurate reading. It may be way over 100. Use 50% pool water and 50% tap water to do the test with. Then double your result to get your CYA level.
 

dswilli2

Active member
May 29, 2019
29
CT
Ah, yes. I read that somewhere. Will do.
Should I test the tap water first (well water)

May be stupid question but I don’t know if cya exists naturally in well water. Just want to be fully accurate
 

jimbethesda

Gold Supporter
Jul 2, 2018
165
Austin, TX
Ah, yes. I read that somewhere. Will do.
Should I test the tap water first (well water)

May be stupid question but I don’t know if cya exists naturally in well water. Just want to be fully accurate
It doesn’t. Well/tap water will have 0 cya. You don’t need to test.
 

dswilli2

Active member
May 29, 2019
29
CT
Thanks. Just realized that it was trichlor in that shock.

New CYA in sun was as follows

Diluted 50/50: was 45x2 for 90
Full pool water: was just at 100 perhaps a smidgen under after multiple times pouring it back in and re testing so we’ll call it 100

Today’s water looks great and I can see the bottom with the sun for the first time but still cloudy.
16 hours from last test

FC is now 28
CC is .5
TA is 70
CH is 100

Calculator says slam will need 56 oz or 1 qt 3 cups to reach slam level of 39. I have 12.6% sodium hypochlorite

Checking here before I add