What is in shock

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Ha ha yes this is the million dollar question. The rate he was using chlorine i think I would have needed like 5-10 gallons of 12% every day. Which logistically is hard to do. We've cleaned out all the local stores. There was no sign at all of algae. No sign at all what could be consuming so much chlorine!! Pool is crystal clear, no cc's to speak of, no cc smell. Just didn't make sense. Sometimes you need to bend the rules. I mean how much chlorine can you add before you throw in the towel? Anyone chlorine level is 3.5 just checked so tomorrow will be the key for our overnight chlorine loss.
 
I don't want to be harsh but it seems like you do not understand the process. Two things consume chlorine....UV and organics in the pool. You need to kill the organics in this pool and you need to do it with the SLAM process.

It sounds like you are "dabbling" with some chlorine here and there and considering other causes......that won't work,

You must attack the organics aggressively and that is the SLAM. I don't think you will get the chlorine usage to drop until you complete a proper SLAM. Can you post a complete set of current test results?
 
Look at it this way, you have a population of 300 of algae spores, they double and the extra clorine kills half, tomorrow you have 300 algae spores, they double and the extra clorine you tossed in killed 300 off again, never ending cycle. This will lead to insanity.

Just slam the pool, if it's clear it will be a quick slam, go to Walmart and get 6% bleach, they always have tons of it. This reduces algae to 0.
 
Pool was super sparkly this morning better than it was yesterday. But overnight we lost some chlorine. Not as much as we were losing. Down to 1.5 (from 3.5). I am hoping that was just residual organics from our cleanout. But I put in 2 bags of cal-hypo this morning (again, it's what we got) and will start the slam process today to make sure everything is dead. I think it was important to clean everything up first but yes the slam is appropriate at this point. I am hoping Weiss re-stocked the 12.5%. If not it is off to Safeway 8.25%. I'll need 8 gallons of 8.25% just to get to slam level. His pH is dropping a lot too down to 7.2.
 
Dave is 100% correct, you will always have chlorine issues with this pool until you finish the SLAM process.

SWG pools can be very misleading. Very often there is little to no visible sign of algae what so ever, but they use a lot of chlorine for some reason. The reason is nascent algae. The SWG makes just enough chlorine to keep the algae from blooming but it can never produce enough chlorine to kill all the algae. Don't ever be fooled by CC's, many pools never have CC's and they are full of algae.

This is the exact symptom that led me to find TFP many years ago and it took several days, many gallons of chlorine, and following the SLAM procedure to a tee to fix my pool.
 
It's downright depressing I went to 2 local stores and only got 9 gallons of bleach. They are sold out of everything accept the foofoo stuff.
 
Just increased chlorine to 28. I'll check in an hour and see how much it drops and add as needed.

If i take it to 30 now is that ok?
 

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With a CYA level of 70 then the level to maintain is 28..........right where you're at. Test hourly and increase the FC level to 28 as needed. Then tonight preform the OCLT to see if there's anything still living and consuming the chlorine.
 
I just got back from HD and got the HDX 8.25% they had nothing else. They have a whole pool section but I wouldn't put a single thing in that area in anyone's pool. I got 13 gallons and I already put in 3 more when I got back chlorine had dropped to 20. So I have 10 gallons left I sure hope this will be enough to complete the slam. Really am perplexed how friggin' much chlorine do I need to add to get rid of whatever is in there? I am going to have to go with the cal-hypo again if I run out of liquid. It seems to dissolve very quickly though near instant. I hate all the calcium it adds but it is what it is.
 
Hey with Chlorine level this high should I put more powder in my sample? I put a little extra this time and seemed to register a higher amount of chlorine.
 
Typically a full scoop of powder is all that is needed. But you should also be able to see a few flecks of powder in your sample that do not dissolve. So using a bit more at high FC is a good idea.
 
mknauss said:
Typically a full scoop of powder is all that is needed. But you should also be able to see a few flecks of powder in your sample that do not dissolve. So using a bit more at high FC is a good idea.
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Thanks! Also I am adding 10 drops at a time of reagent (up to 50). That will not effect the results right?

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I guess I could use the speedstir!
 
Just make sure you aren't adding the drops too fast. They will be undersized and the actual FC level will be less than what you are measuring.

The speedstir is so worth it when trying to measure high chlorine levels, it's almost a must have tool. I wouldn't want to test any other way.

One thing I have learned here, is when a pool needs to be SLAMmed don't ever be surprised on how much chlorine it takes to get rid of the algae.

I'm all for leaving the SWG on at 100% in the beginning of the SLAM, it just helps keep the FC a bit higher. Once you start the OCLT it must be turned off.
 

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