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Tested my fill water (well) and it came back 100. Really trying to avoid draining and re-filling, if at all possible. Today's numbers: FC 2.0 pH 8.6 TA 70 CH 600 CYA 50 Salt 3100 Temp 65 CSI 0.85 Adding MA to bring pH down to 7.7 which will bring CSI down to -0.03

Just opened last week and I am working to get the pool balanced. Here are my numbers: FC 3.5 pH 8.34 TA 60 CH 525 CYA 50 Salt 3200 Temp 66 CSI 0.45 Adding some MA to bring down pH - targeting slight negative CSI (-0.17) Trying not to fixate on specific numbers too much but CH is higher than I...

I have a 5 YO plaster pool that we just completed an acid bath to correct a very blotchy and streaky re-plaster job 2 years ago (in year 3 we had to cut out a substantial length of rebar that was too close to the surface and bled through that required a re-plaster vs patch - that's a whole other...

My readings this morning: FC 3 pH 7.8 TA 80 CH 250 CYA 60 Salt 3100 Water Temp 86 CSI -0.07 Water is clear. Pool looks good. Working on getting the CYA and FC up alittle more. However, when I go to either skimmer I find the black particles in the attached picture. Any idea what this is?

Thanks Pool Gate. I appreciate the comments. I think you are right that my chlorine output is not sufficient. I will consider adjusting % and time going forward. Updated: So yesterday we had some pretty good thunderstorms both during the afternoon and evening. Tested FC and pH again. 9 PM...

In past years, I have kept my chlorine at 4-6 range and run SWG between 50-70% for 8-10 hours. Never had issues. Crystal clear water, chlorine level maintained (once I acheived the initial balance for the season). 8-9 chlorine seems high. Not sure on the SWG. cell and contacts were cleaned...

Went away for almost a week and came back to 0 chlorine. Has been that way for several days. Tried adding bleach - no luck Tried boosting the SWG (100% for 24 hrs) - no luck My readings this AM: FC - 0 pH - 8.2 TA - 90 CH - 300 CYA - 45 Salt - 3100 SWG runs at 55% for 8 hours per day (8:15 -...

Which would you trust? SWG generator digital display or salt test strip from Aquacheck? Fairly large range between the two: SWG - 4100 Aquacheck test strip - 3110

I purchased the Home Depot HDX kit when I was a newbie (didn't know any better). After finding TFP, I saw the light and purchased a TF-100 test kit. Thx TFP! Question - are any of the chemicals in the HDX set the same as the ones in the TF-100? Can you use them interchangeably with the...