Problem with Chlorine Test

[xray328]

I added 41 oz of 8.25% bleach last night which according to pool calculator should raise FC to 2.0 from zero. This morning I did the chlorine test on a 25ml sample and even after adding six scoops of powder the water still won't turn pink. The other thing is that the powder just sorts clumps into the bottom of the tube no matter how much I swirl or shake.

I should add that at the same time the bleach was added, a gallon of acid was added, and 4 lbs stabilizer was added to the skimmer. The aerator and pump have been running all night

Any ideas?

Thanks!

 

[jblizzle]

The water did not turn pink because your have no FC left in the water. 2ppm could be gone very quickly if something is in the water.

What are the rest of your test results? How does the water look?

You only may need more than one scoop if your FC is very high., like well above 10ppm.

Posted from my Droid with Tapatalk ... sorry if my response is short

 

[Bluechip]

You should not need more than one scoop. Also a little clumping is normal. It almost never totally dissolves for me. If your not showing any Cl you might have something growing in your pool that is not visible yet. Was the pump running after you added the chlorine?

Sorry. Missed the part about running your pump all night.

 

[Bama Rambler]

Use the OTO chlorine test as a check. If there's chlorine in there it it'll turn some color.

 

[wollerd]

Also, on the chlorine test you only use a 10ml sample. You stated a 25ml sample which may have diluted your test.

 

[xray328]

I don't have an OTO test. I did resort to the strips and its showing all white (zero ppm). All my other numbers are ok, TA is still high though. Not sure what to do, should I shock?

 

[jblizzle]

What are all the other test results? What does the water look like?

Posted from my Droid with Tapatalk ... sorry if my response is short

 

[xray328]

pH 7.4
TA 225
Calcium 120
Chlorine 0
CYA 0 - 4lbs added last night - first time

Aerator running since last nights 1 gallon acid.

Water is crystal clear.

 

[Pool_Fool]

Try using the overnight chlorine loss test.
Check the pool school on how to do this.
This should tell you if you have a problem like algae in the water,
Then You will know how to attack it.
With cya so low the sun may be burning off the cl during the day.

Just a thought.

PF

 

[JasonLion]

Personally, I would go straight to shock level, around 12 ppm of chlorine. Something is using up chlorine and you want to take care of it right now rather than risk it getting out of hand. It is probably something trivial, but but better safe than sorry.

There are lots of possibilities for what it might be. If you lost CYA over the winter there could be ammonia from the broken down CYA in the water that can occasionally take huge amounts of chlorine to clear out. Or it might be a touch of algae that you have already killed off, or algae that is about to get out of hand. There is no way to tell at this point, so I would go for safe rather than sorry.

 

[xray328]

It's a brand new pool as of last week. I went ahead and went to shock level, what's the next step?

Thanks!

 

[duraleigh]

what's the next step?

read "How to Shock Your Pool" up in Pool School. Follow that procedure to completion.