Well, yesterday evening FC=25, CC=1 (lost 2ppm all day, had 3 people in the pool).
Added 1 jug of bleach @ 8:00, tested @ 10:00 pm FC=30 CC=1
This morning tested @ 7:00am FC=28 CC=1
It's a cloudy, rainy Labor Day here.
Well, yesterday evening FC=25, CC=1 (lost 2ppm all day, had 3 people in the pool).
Added 1 jug of bleach @ 8:00, tested @ 10:00 pm FC=30 CC=1
This morning tested @ 7:00am FC=28 CC=1
It's a cloudy, rainy Labor Day here.
15K gal, 15x30 rectangular, in-ground, vinyl liner, Pentair ¾ HP Whisperflo on 24/7, Pentair Cartridge Filter(CCP240), Heater (gas), Automatic Pool Cover
Sounds like progress to me. 3 people in the pool with no increase in CC. Shame about the weather - maybe it will get better this afternoon.
It turned out the weather did get a bit sunny as the day went on. Hubby went in the pool again (at night): water felt squeaky clean (opposite of silky soft?),smell of CL but no bitter taste…still getting a slight black ring around the skimmer.
Yesterday: morning FC=28 went down to FC=26 by evening. CC=1 again.
I added a jug of bleach and re-tested at 11:00pm FC=31 CC=1
This morning: tested @ 7:00am FC=29.5 CC=1.0
any day now…….
15K gal, 15x30 rectangular, in-ground, vinyl liner, Pentair ¾ HP Whisperflo on 24/7, Pentair Cartridge Filter(CCP240), Heater (gas), Automatic Pool Cover
I'll bet you smelled chlorine when your husband went in the pool and when he came out. That's because any impurities on the skin get metabolized and...smell like "chlorine".
Happens to me all the time. My FC will be solidly where it needs to be, there will be NO "chlorine" smell, I'll just stick my arm in and Bam! "Chlorine Smell"!
Carl
I think it's time to let it drop.
I haven't tested enough to be certain, but I suspect that, when FC levels are very high, spurious CC levels may appear. If your FC is stable overnight -- and 2 ppm is fairly stable.
There may be some lingering chlorine demand. However, the best way to deal with it is probably simply to run FC levels equal to 10% - 15% of your CYA for awhile.
Black ring around the skimmer can be from body oils and lotions OR it can be from plasticizers being released from the liner. If it's plasticizers, there is NOTHING you can do about that, except keep the pH reasonable (between 7 and 8).
PoolDoc / Ben
OK- I just tested this morning @ 6:30am FC=26 CC=1
Lost 1 ppm FC overnight (27 to 26)
So if my CYA is 150 then I should let the FC lower to the 15-22 range and keep it there, and not worry about the CC? What if the CC level goes up?
15K gal, 15x30 rectangular, in-ground, vinyl liner, Pentair ¾ HP Whisperflo on 24/7, Pentair Cartridge Filter(CCP240), Heater (gas), Automatic Pool Cover
Sounds right.
If CC goes to 1.5, wait for it to come back down. If it continues climbing - it may take additional action. Let the pool get all the sun it can.
Ok- so by wait you mean do not add any bleach, just keep testing and see if CC goes down ( or stays at 1) at lower FC level, yes?
15K gal, 15x30 rectangular, in-ground, vinyl liner, Pentair ¾ HP Whisperflo on 24/7, Pentair Cartridge Filter(CCP240), Heater (gas), Automatic Pool Cover
If you had the same storm we did, I hope you had your auto-cover closed! Debris is everywhere. Even my outdoor, heavy furniture was overturned. Large slate slabs on my table were lifted and askew. Wow. How is the pool doing since lowering FC?
26K gal 20x40 rectangular IG vinyl pool; Apr 2014: New pump, liner, auto-cover, & water; Pentair Whisperflo 1HP pump; Pentair Trition sand filter; Cover/Star CS-500 auto cover; Taylor K-2006C; OTO