Chlorine Lock ?

[PoolDoc]

Well, this morning brings zip zero chlorine. I want to say that I could see a tinge of yellow in the test bottle, but not enough to register on the lowest level of the vial.

Overnight chlorine loss almost certainly indicates that there is something in the water that the chlorine is oxidizing. The only solution to this is to chlorinate till it's gone OR to drain and refill. (Remember, most inground pools cannot be drained safely without special precautions). You can do the bucket demand test to see how much chlorine it's likely to require: http://pool9.net/bucket-demand/

Unfortunately, we can't tell you WHAT is in the water. We'd know a little more, if you had the K2006. I can tell you that your problem originated in one of two ways: EITHER, it's something the pool store has been selling you -- and yes, stores sell MANY worse-than-useless products -- OR it's partially degraded stabilizer (cyanuric acid), resulting from a period of biofilm (bacterial slime) activity in your pool.

[sabres07]

No disrespect meant here, but really the first thing you need to do is buy the Taylor test kit. Without reliable and accurate numbers, the advice you will get here is more "general" in nature which translates to more cost and time spent clearing up the problem. There is a reason why every first answer to each thread in this forum starts with "what are your numbers? If you don't know, get a good test kit".

[Watermom]

No disrespect meant here, but really the first thing you need to do is buy the Taylor test kit. Without reliable and accurate numbers, the advice you will get here is more "general" in nature which translates to more cost and time spent clearing up the problem. There is a reason why every first answer to each thread in this forum starts with "what are your numbers? If you don't know, get a good test kit".

What he said!

[sabres07]

As a point of referrence, I was told I had 'chlorine lock' a few years ago by my pool store after having the same problem you are having now. No matter how much chlorine I added it would get eaten up almost immediately. So I googled chlorine lock and found this site....I have not set foot in a pool store since then and my pool has been crystal clear, too, since I have been following the BBB method. By the way, it took something like 30-35 gallons of 12% chlorine to kill whatever was causing my chlorine demand. We eventually figured my problem stemmed from a degredation of CYA over the winter which created ammonia as a waste product. Vast amounts of chlorine are needed to rid the ammonia.

[JimK]

As a point of referrence, I was told I had 'chlorine lock' a few years ago by my pool store after having the same problem you are having now. No matter how much chlorine I added it would get eaten up almost immediately. So I googled chlorine lock and found this site....I have not set foot in a pool store since then and my pool has been crystal clear, too, since I have been following the BBB method. By the way, it took something like 30-35 gallons of 12% chlorine to kill whatever was causing my chlorine demand. We eventually figured my problem stemmed from a degredation of CYA over the winter which created ammonia as a waste product. Vast amounts of chlorine are needed to rid the ammonia.

I also had to deal with the effects of CYA degradation this spring. I estimate I lost about 40ppm of CYA. It took about 26 jugs of 8% bleach before CL levels stabilized. It's been smooth sailing from there.

[mjsboone]

Today I received the official K 2006 test kit that I ordered. After reading the directions, I realized that they are quite detailed! Can anyone offer advice in plain English to get me through this testing procedure?

I've been keeping the pool looking pretty good by the addition of bleach but it's teetering on the edge of algae hell-I can just tell. I am hoping to get the numbers I need to get the guidance I need to settle my pool problem once and for all. Thanks all!

Jane

[Big Splash]

Watch these videos in this thread

Taylor K2006 Videos on YouTube
http://www.poolforum.com/pf2/showthr...eos-on-YouTube