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I usually get Wal-Mart Great Value bleach. Labeled at 8.25%. It has been very consistent. HEB value brand works just as well. I did notice some bottles showing up on the shelf next to the Great Value, non-scented, claiming a new spout design. However, the concentration and ingredients are not...

Ok, so here I am 23 days into the SLAM and seem to be going backwards. I am starting to think of turning it into a Coy pond or filling it in and making a bigger patio would be a better us of space, resources and preserve my sanity. I dosed yesterday morning at 7 am to 21ppm. It was 12.5ppm (SWG...

If I go purely by PSI, I can go 4-6 months. I did this one early because of the sealer I mentioned earlier, and just to eliminate anything in the cartridges as a possibility.

Good point. You are correct, it is 8.25%, and I get it from Wal-Mart. The stock turn-over should be pretty high. Even still I am testing before and after addition, so no matter what the actual strength, I know exactly what the results are. At least at night before I begin the OCLT. In any case...

So, Day 19 of the SLAM. Still no let-up in the Cl loss and CC running pretty consistently at 1.5 (hit a high of 2.5 a few days ago). No improvement. No obvious signs of algae anywhere. Vacuumed the pool again this weekend and changed out the filter carts. No improvement there either. So, the...

Good thoughts and worth checking again: I have tested and tested again. By calculation and confirmed by testing CYA is 40. PoolMath shows a Shock value of 16. Mustard shock of 24 (I am reading that correctly, right?). Been running at 19+, just add normal engineering factor of safety :) The...

So I am now 12+ days into this SLAM with no signs of improvement whatsoever. Is it possible it just takes this long? It seems like a really long time. I have run this process before when the need was indicated and it usually clears up and holds Cl within a few days. How do I get off this...

tf100

OK, so tested this morning. I added Cl to 28ppm last night. Back to 22 this morning with 1.5 CC. Basically I seem to be making no progress at all. 11 day in continuous SLAM, no progress. I tested CYA again, just to make sure and it is testing a consistent 40.

Actually, the SWG has been off the entire time, at the suggestion of duraleigh. - - - Updated - - - Ok, the only places that could be are behind the lights and in the autofill bucket. The autofill has been off (the backflow preventer got frozen this past winter) and I dosed the bucket...

This is a fantastic resource and a great place to turn when you need help, I recommend it often. I started a SLAM process on July 16. My CYA was at 0 (another post). I added enough powder to bring the CYA to 40 and confirmed with multiple tests. I have been in continuous SLAM mode since July...

Test results as of 6:00 this evening FC - 12.5 (raised back to 18) CC - 1.0 CYA - <20 (I added 26 oz yesterday, but don't expect that to show up yet) pH - 7.2 yesterday at beginning of SLAM TA - 80 CH - Unknown (tested to 70 drops woth no color change. I suspect the reagents could be old, they...

KCINDC, When was the last time you added CYA to your pool? Not exactly sure, it has been at least several months. Do you have an autofill? Yes, but it is off. I am filling manually, which is why I know I am not adding much water. Only have to raise it about 1/2" ever 1-2 weeks. What size is...

I'm at a loss. Requesting help from the experts here. I have been running my pool for 2 1/2 years now. I have had issues with low Cl this year. Just replaced the salt cell a couple months ago. A few weeks ago I had begun a SLAM process due to high Cl demand. At that time I tested the CYA to get...

I might have missed it, but what is your deck material? Feel the stuff on the bottom, is it gritty, or slimy?

Update: The local rep for Pool Pilot came yesterday and replaced the main board. :goodjob: Back to normal operation. He confirmed that voltage should be between 14 and 17 and Amps between 5 and 7 or so.

I have exactly the same issue, almost exactly the same readings in fact. Called the factory, the rep tried to convince me it was a chemical issue. Then I called my pool builder (should have started there) and they could recite to me what I was seeing. You should see about 15 V and 3-5 A. They...

If you added the bleach in the morning and tested in the evening, then added and tested again in the morning, it is possible that the bleach percentage might not be off, but that the pool is consuming the bleach. I would look for the experts here to chime in, but I would reference Pool School...

Update: I finished the second bucket test with the pump running 24 hours. The loss was exactly the same as with the pump off. So apparently, this is a good troubleshooting technique, if the loss rate changes with the pump on vs. off, then it will indicate whether the loss is in the return...

That's about what my calculations gave me too. I think I have established there is a leak. I'm working with the PB as it is still under warranty. I am also looking for the leak as well, short of digging anything up just yet.

Update. So far I have done 4 bucket tests. Three were with the pump off for 24 hours. The pool lost 3/8", 1/2" and 3/8" more than the bucket. The fourth test was run with the pump at max for 24 hours. The pool again lost 3/8". The idea was to isolate whether the potential leak was in the return...

Love the pool, awesome :goodjob: You are going to enjoy not having to cut all the grass, and then being able to jump in that nce cool pool when you are done! You asked about a pool brush. We tried several, and on the advice I saw on this board we got a Wall Whale. Best bush we used, provides...

Poolsean, It does. It has taken me a little testing to figure out what volume to put in there (the volume the PB gave me was apparently way off), but the lbs to add does show. I am happy with the Nano so far, I was just curious how tight the calibration on the salt reading was compared to the...

Thanks for the replies, I'll go with the SWG.

I have an Autopilot Digital Nano. It is saying the salt concentration is 2700 ppm (with no correction applied). I know I need to add salt, the question is how much. The salt strips I purchased from the same place I get my test chemicals (and advertised on this site), Aquarite I think is the...

I had similar issues with chemicals giving me larger results than I anticipated. I was using the pool size the builder gave me (12,500 gal). Every time I calcualted the chem additions based on that value with the Pool Calculator (http://www.poolcalculator.com/), I would get more reaction than...

Did it! OCLT passed last night! :whoot: Thanks for the help and especially the encouragement (especially Bama) and the knowledge gained on this board. There were times during this process (3+ weeks) were I was doubting the sanity, especially when you see all the bleach bottles, but it works...

Bama, Thanks for the input. I have contacted the PB. They want me to run a bucket test with their directions (equipment off). Not sure what that proves except if the leak is in the actual envelope. Since I am still under warranty, I will do whatever.

Ok, came back yesterday from 3 1/2 days away, expecting to find a green monster. To my suprise it is still clear and the Cl was 9. (guess the pucks helped). Even better, I took the floater out and left the SWG at 100% overnight and Cl was 12.5 this morning. Progress! (My wife thinks it is...