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Hit it a little harder than "SLAM ideal." Added 2 gallons of 12.5% Sanitizer at around 1:45pm. 4:30pm Cl drop test results showed 16.5ppm FC and possibly 0.5ppm CC (I may have been hallucinating a tinge of red after the 5 drops of R-003). In any event, if the overall effect of adding 2...

Here are the most recent test results: ------------------------------------------ Test Results 05-07-2024 @ 01:00 PM ------------------------------------------ Free Chlorine: 0.0 Combined Chlorine: 0.0 pH: 7.2 Total Alkalinity: 60 Calcium Hardness: 100 CYA: 30 Temperature: 72°F...

I thought I remembered the two slates of advice given to me earlier in the thread. I am clearly getting older and would best be served by not relying on what I thought to be a steel trap of a memory. 😞 I kinda got a conflated picture of the two responses. After 24 hours of having the pump run...

To speed that process up, what would your thoughts be on getting a long 1.5" hose (like a vacuum hose) attached to my pump's intake, dropping that into the center of the pool (possibly weighting it down if necessary), and routing the output to the discharge port, again, through some kind of...

Hi, all. Thanks to TFP, opening up my AGP, adjusting and maintaining its chemistry, and closing up shop have been a BREEZE. I'm ridiculously grateful for having found this place. I was looking forward to opening my pool up later this month, but noticed yesterday that my cover cable busted...

No. I know of no means to artificially alter the SLAM FC target other than by differences in CYA in the app. I believe that SLAM FC is supposed to be based mainly off of the FC/CYA charts here and in PS.

Well, I'm definitely not there, and I'm currently running conditioner into my pool through my unused chlorinator to raise my level from approximately 10ppm. I'll check in the AM to see how much has actually dissolved. If not satisfactory, I'll start putting the squeeze on it.

I didn't know if that was a bug or by design. I have another thread going, per your suggestion. I don't know who actually does the dev work on that. I can't imagine that it's a design thing, though. A pool would have to be nearly sewage for a standard SLAM target to be 28 ppm, no?

It's now showing correctly at SLAM target 10 ppm @ CYA 10 ppm (I'm adding). Is there something about not ticking off those "reminders" that alters the target SLAM FC? I ask because I admittedly forget at times to log my maintenance in the app despite having done it. I mainly put in test...

Those screen captures were taken on 7/25, so I don't know whether or not this has been addressed since.

Sorry, I was out of the country for some time. I sent these screenshots to the PoolMath email address, but haven't seen anything back yet. Here they are, nonetheless. Please disregard the maintenance warning on my screen. I had simply not entered the maintenance performed by that time. The...

Hello?

This is the "home" screen on the app off of which the SLAM FC target is being based, apparently (it's just the test results I just entered, copied above). I've also just never ticked the Filter Cleaning box, which is why the reminder is there. It was cleaned a couple of weeks ago. Imagining...

Also, still ... what's with the Pool Math app telling me that, with my CYA at 40 ppm, the SLAM target FC is 28 ppm??? If the FC/CYA chart (below) is showing me that, by rights, it should be 16 ppm, either the chart is wrong or the app is wrong. Or there's something else amiss.

Here are my test results from 8:40 PM tonight. FC: 17.0 ppm CC: 0.0 ppm pH: 7.5 (ostensibly unreliable, but plausible) TA: 70 CH: 200 CYA: 40 ppm Temp: 82.5°F CSI: -0.38 Also, here are some photos of the offending masses...the last image is there to give perspective as to the scope of...

Okay, maybe I wasn't seeing things. Is this app not telling me that target FC is 28 ppm???? Why does it say that with a CYA of 40, when the FC/CYA chart says more like 16? Is this a problem with the app, or is there something else I'm simply not aware of here? Thanks.

Hi. First, let me start off by saying that I'm currently out-and-about for work, but when I get home later on this evening, I will come back and provide a full test result in this thread. I know that's important. I also know that some of my testing will necessarily be off in current...

To save a little coin and reduce fatigue, consider getting "liquid chlorinator" as opposed to "household bleach." The stuff that you get in Walmart, Target, Sam's Club, etc., is largely 6% NaClO by volume. I actually found that, so far in my search, the best source for liquid chlorinator is...