No Chlorine Stability

What is floc, clarifier, stabilizer, cyanuric acid,
algaecide, brightener, dichlor, sodium hypo,
sodium bisulfate, ....??
Colleen Murphy

No Chlorine Stability

Postby Colleen Murphy » Mon 05 Jun, 2006 10:12

Can not keep Chlorine levels in pool. Phosphates are at 1000 and can not bring down, treated with phosphate remover and does not affect. Also, 32 gallons of liquid chlorine/shock added last week still no chlorine detected. Chlorinator filled and on full, floating chlorine dispenser filled and tablets in skimmer and still no readings. Anyone have any ideas. Inground pool, since 1987. New liner in 2002, never had any chemical problems until now.


pemoye

chlorine

Postby pemoye » Tue 06 Jun, 2006 12:27

What's the pH? What kind of test kit are you using?
Colleen Murphy

Postby Colleen Murphy » Tue 06 Jun, 2006 14:24

I use aquality (mark iv) liquid drops and Insta test 3 and 5 test strips (LaMotte).

PH - 6.8 and have treated with alkalinity which brought up PH to 7.5.

Still have NO chlorine reading.
Craig

Pool Chemicals

Postby Craig » Fri 30 Jun, 2006 03:46

Colleen Murphy wrote:I use aquality (mark iv) liquid drops and Insta test 3 and 5 test strips (LaMotte).

PH - 6.8 and have treated with alkalinity which brought up PH to 7.5.

Still have NO chlorine reading.



Colleen, I have the very same problem. We've had a pool for 18 years and this is the first time we've had this crazy problem. Did you find out anything yet? :( I'm not sure if the problem might not be in the DE filter or the age of the chlorine we are using.
quarterhorsemom

same problem

Postby quarterhorsemom » Sat 01 Jul, 2006 08:00

I cannot get chlorine to register either. I bought all new testing supplies
high dollar ones) thinking that might be it and still no chlorine registering. PH is good and I am having a next to impossible time getting pool clear, blue cloudy water. We are vacumming the crap out of it and still the same.

I am at a loss. I have spent hundreds of dollars on chemicals which I could have spent hiring a pool company to handle it.
Craig

Re: same problem

Postby Craig » Wed 05 Jul, 2006 03:48

Quarterhoursemom,

I finally got a low level chlorine reading and it seems to be going back up. I shocked the pool 3 days in a row and cleaned it with a hand pole vacumn. The shock actually is the bacteria fighter and then after adding chlorine tablets to my two skimmers, It finally started to come up and the chlorine started working. If you don't shock the pool regularly, I'm told it takes all the chlorine to fight the contamination which pulls the chlorine out of the pool and you get a NO Reading on your test kits/strips.
Later! :?


quarterhorsemom wrote:I cannot get chlorine to register either. I bought all new testing supplies
high dollar ones) thinking that might be it and still no chlorine registering. PH is good and I am having a next to impossible time getting pool clear, blue cloudy water. We are vacumming the crap out of it and still the same.

I am at a loss. I have spent hundreds of dollars on chemicals which I could have spent hiring a pool company to handle it.
JUdy

No chlorine reading

Postby JUdy » Mon 04 Jun, 2007 13:05

I had the same trouble with my pool. 1st time in 40 years. I removed the chlorine floater that had stabilized chlorine in it & I started shocking it every night for five or six nights with liquid chlorine/chlorine bleach. It finally started registering, I put the floater back in & has had perfect chlorine readings ever since.
Buggsw
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Postby Buggsw » Tue 05 Jun, 2007 00:13

Craig & Judy - Yep, you got it. You have to hit it high and long with chlorine.

You have had a problem with chlorine lock or too much algae consuming the chlorine. The former is caused by too high of levels of CYA - which causes you to need to use more and more chlorine. You should switch to liquid chlorine if this is the case. The latter is well, just hungry algae.
LeftField11

Postby LeftField11 » Fri 08 Jun, 2007 08:42

I had this same problem this spring. I took a sample of my water to a pool store and had it tested.

The problem was that I had no CYA (or very little) in my water. I dumped three 3 lb. bottles in my 33,000 gal. pool and the chlorine seems to be stable.

This might seem too obvious, but it got me.
Backglass
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Postby Backglass » Fri 08 Jun, 2007 08:48

Sound's like a CYA (stabilizer) problem.

If you don't have any CYA, the sun causes the chlorine to disappear within an hour or two. If you have too much CYA, it inhibits the chlorine and it can't do it's job. The key is to strike the balance!

Since you have a "high dollar" test kit, it should have a CYA test too. What is your level?

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