Recent content by lcmcb

The ozone and UV do run all the time. Obviously the ozone consumes very little chlorine, as even with it running, my normal daily chlorine consumption was about 2ppm/24hrs. The UV has been running though and with the lack of CYA, that could account for increased usage. I'll try shutting down the...

Well, if CYA is zero and the pool were exposed to light, you are correct. But since i have it covered in the day, sunlight is not causing (much) chlorine loss and that is coming almost entirely from whatever process is ongoing in the pool. (Tested overnight last night and got a loss of 5ppm) My...

Thanks all. Typically test once daily. Same time. Evening. And make additions after testing....not ever before. So, those levels would be the lowest for the 24 hr period. Unless my FC is dropping and magically coming back up on it's own. (and i am not SWG) 0-0.5 is considered normal for CC....it...

OK folks, long story here so bear with me. FYI, I am a trained chemist and have worked in industry and keep detailed records. Been doing the TFP system for 3 yrs now with mostly spectacular results, minus one issue 2 years ago when on vacation and our substitute failed to follow my instructions...

Thanks! Yeah, i talked with light manufacturer. Ultimately had my electrician come out and check the GFCI. Apparently, there was some "backward" wiring that was done by the pool co on the original install. so i had connected the wires incorrectly (though typically white to red and black to black...

hey all, so my pool has a jandy watercolors large led light. (Zodiac CPHVLEDS50 WaterColors 120-Volt LED Pool and Spa Light with Stainless Steel Face) has been in the pool for 6 years, and had been going out....and finally did burn out entirely this year, so decided to replace it. the pool...

Hello all! Great summer thanks to TFP! Finally closing pool. Have a quick question. So, will be bringing my pool up to slam this weekend and closing a few days later. I note in the pool closing post on here that it recommends adding polyquat algaecide for the winterization...and being in...

I only added lithium hypochlorite (dry shock....have a couple boxes of this powder shock lying around...so figured i could use it up over time as well). So no CYA was added at all. Have tested the CYA a couple times and it is stable...about 32-34....definitely much closer to 30 than 40. May try...

Hey all, have a chemistry question. wondering if someone might know the answer. so...have been following methods here flawlessly and pool has been perfect since it came out of slam. since the one day above, CC has always been at 0.5 and i have kept the FC levels above 2.5 at all times. pH has...

Cool. So, generally, if you catch that CC going up, just be more aggressive with shock levels of chlorine? Kind of what i was thinking. makes sense. and, yes, awesome to be able to see things happening before your pool turns to milk. thanks

Hey all, So...interesting question. Everything went great with the OCLT. Waited until just before dark and tested. Dropped exactly 1ppm from 16 to 14. So, Saturday morning went ahead and let levels drop in the sunlight and had some swimming. Have very strictly kept my free chlorine within the...

Update... nearly crystal clear water. CC now at 0.5 or less last 24 hrs. Will do the overnight chlorine test tonight. If stable, will let the levels drop down so the kids can swim, yay! Question....if i get down into normal ranges and still have a small amt of CC (like 0.2-0.4 range), would u...

Hey all, Thanks. Yes, continuing slam. CC continues to be just barely above 0.5...in fact, argues about whether there was still color in there requiring another drop of reagent... maintaining FC around 15ppm. Also, clarity has dramatically improved. Wouldn't say perfect yet, but darn close. The...