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Actual water temp at the time, per the heater, was 82.

Today the Cell light is not on even after pressing the More button. Also, running the diagnostic test resulted in the 20% light lighting up. Pressing the More button again resulted in the 80 and 100 % lights being on. I forgot to mention that the Cell light came on yesterday only after I had run...

The Cell light is on while at the same time the salt light is red. I haven't had a chance to run the diagnostics yet. Pouring rain here! I'll be doing it tomorrow.

The flow light is green. The Cell light is on although earlier it was off. I assume it is on when it is actually producing chlorine.

My Pentair IC40 is showing a solid red light for salt level despite my recent tests showing salt at 3600 using the salt water test kit. This just started yesterday. I also just did a test of the water coming out of one of the returns and got a chlorine level of 6.5. Note that I had a sprinkler...

Thanks!

When using the pool math app, I don't see this option, I believe, for adding chlorine. This is something my pool builder left a few years ago. It's called Pool Logic. It's described as "Quick dissolving stabilized chlorinating granules." And 99% Sodium dichloro-s-triazinetrionne dihydrate. It...

Any thoughts on why the pH didn't go up? I'm so used to it going up when running the SWCG.

I started SLAMming. Thanks for the advice!

The pool was great until a few days ago when we started noticing a slight haze. Here are today's test results: FC: 3.0 CC: 0.0 pH: 7.4 TA: 225 CYA: 70 CH: 300 I'm tempted just to slam it. I did this a few weeks ago and used Clorox bleach from Costco. I can't tell if that has polymers (which can...

Finally done! Tests are good and there is absolutely no brown "dust" on the pool floor when I brush it. I have to say, I really think that this is the first time that has ever been the case. I think I always attributed the low level of brown dust to just being pollen, or dirt in the air, ending...

Given the steady FC results (albeit possible minor testing errors), the 0 CC, and the really clear water, am I almost there? It seems like I must be close not having added any chlorine since starting the SLAM. The only thing now seems to be the hopefully, decreasing, amount of brown deposits on...

Thanks for the testing tip!

Update from this morning... still a bit of brown dust asking just one seam in shallow end and some when I brushed the pool again but very light. Water is sparkling clear. FC treated at 15.5 which makes no sense unless I miscounted since prior reading was 14.5. I haven’t added any chlorine...

It has improved quite a bit. Yesterday morning there was much less when I brushed it again. Will be checking it later again today. I thought the water was pretty clear before but it has really improved as well.

So I SLAMmed the pool two days ago. FC was 15 for three tests and today - this evening - it was 14.5. The CC was 0. Water is very clear. The only weird thing was that I got a CC reading of 1.0 during the test this morning. Out of the several tests I performed (several before the CC reading of...

Yes, my pool pictures are in the first post. The two "blue" water pics. I SLAMmed it :) We'll see how it looks tomorrow.

Thanks for extra explanation. I tested FC this AM and it was exactly the same as last night's measurement. Still no combined chlorine either. Based on this feedback though, I'll SLAM it, just to be sure. You are talking about the pool in the first picture in this thread right?

Before I SLAM the pool, I thought I'd double check - my chlorine level only dropped by 0.5 over the last 3 days (using the FAS-DPD test). I was under the impression that if I had algae, it would have gone down by much more than that over the 3 days. If that means it isn't alge, is it possibly...

Thanks! I’ll do that. I was just surprised that I could get algae in cold water. Probably didn’t want to believe it. Plus it’s been covered almost 100 percent of the time since closing.

CYA is 40. And, I have kept it covered all winter and so far this spring. I suppose it could be leftover from last year, but I didn't notice an algae problem last year either. One thought I had is whether or not it was basically leftover pieces of broken down leaves. I always seem to end up with...

I opened the pool a few days ago and I noticed some brown sandy looking substance on the bottom of the pool. Most of it was along the seams of the vinyl liner. I vacuumed the pool and left it as is. Today, I opened up the cover and saw the same brown substance. As some background, we're still...

No, it is a narrower pipe. Maybe 1.5 inches. The other pipes you see in the picture are two of the three suction lines; two skimmers and one pipe for the two drains. The third pipe was just cut out of the picture. No suction port. I might just have to ask the pool builder what it's for. The...

what is the purpose of the pipe on the left? The one coming out of the ground? It used to be covered with duct tape I believe.

My pool is fairly well balanced for having just opened it! I just want to get it balanced best I can before we actually try to heat it and swim in it in 2-3 weeks. Here are my numbers... FC = 4.5 pH = 7.8 TA = 250 CH = 300 CYA = 40 Temp = 50-55 (still cold at night in MN!) Salt = Unknown as of...

Worked perfectly. Pump primed without any problems!