Recent content by frogboy

I believe my pool was installed in 2003 (according to the permit history). Can you tell if this is a plaster pool? Any tips on what can be done about the staining on the bottom? If it needs to be drained anyway, does it make sense to try to fix that at the same time? The water is clean and clear...

How would you tell if it's plaster?

I have the TFP test kit and noticed the pool store also measured TDS and phosphate (he said both were ok and the water was in good shape). Numbers were pH 7.6 FC 5 (I just replaced my SWG and am in the process of titrating the chlorine production %, he said this should be between 0.7 and 3) TA...

Cool, I didn't realize I could connect my phone to the pump. Worked like a charm. My pool passed the OCLT so it looks like my first SLAM is in the books thanks to you guys. The current FC is 7.5 and poolmath says the target is 3. Once it drops to this level, then do I have to keep adding liquid...

The filter is a Pentair Clean and Clear and the starting PSI was 10. I tried to change the speed from 2400 to 3000 RPM via the iAqualink app (menu->system setup->VSP setup->speed setup) when the pump was off but then the pump wouldn't turn back on. I turned it on at 2400 and then adjusted the...

Got it, I bought the test kit a few weeks ago and I calculated the pool volume with the Orenda app so I updated it based on that. I'll decrease it by 500. SWG was set to 0% so presumably it's off. Tested CYA again (2 days after the sock went into the skimmer) and it's still around 20. FC dropped...

I decided to SLAM my pool first cause it was growing a beard. Last night, I adjusted the pH to 7.5 and threw in a sock of CYA, then I added a gallon of liquid chlorine per poolmath (actually it said to add a little more). Now the algae is 75% gone and I tested the water again. The FC is 13 and...

I just bought a bunch of chemicals and will start the SLAM today. How long do I wait after adding acid and CYA before adding the bleach (do I need to test pH and CYA again before adding the bleach)? Does it matter that it's going to rain 2" between now and Friday? Should I wait for the ground to...

on PoolMath it says to add 18 oz of dry stabilizer to reach a CYA of 30 and 60 oz of 29% muriatic acid to achieve a pH of 7.3. It doesn't tell me how much chlorine I'll need to add ("Not enough information to provide accurate advice"). What am I doing wrong? Once the SLAM is complete, in the...

Thank you all for your advice. I was out of town for a week and now the pool looks like a swamp. I tested the water again and the values were: FC: 0 pH: >8.2 (slightly more magenta than the high end) total alkalinity: 80 CYA: 20 calcium hardness: 875 salt: 3200 I tested the calcium hardness of...