Too much chlorine loss or no?

Alright tonight’s test has the chlorine above the mustard slam level so that’s good. It showed the smallest amount of combined chlorine - went away with one drop. So, <.5. With regular brushing, does it make sense to have some cc if the brushing is doing it’s job and the chlorine is killing what it’s supposed to? I’d expect to see that?
 
You are doing a great job taking care of this pool now! Well done! I would love to see a pic of the water.

Saturday swimming? OH YEAH! You can even swim today so long as the FC is just below SLAM level for your CYA!! CANNON BALL!!
 
Alright tonight’s test has the chlorine above the mustard slam level so that’s good. It showed the smallest amount of combined chlorine - went away with one drop. So, <.5. With regular brushing, does it make sense to have some cc if the brushing is doing it’s job and the chlorine is killing what it’s supposed to? I’d expect to see that?
@Newdude
 
It showed the smallest amount of combined chlorine - went away with one drop. So, <.5. With regular brushing, does it make sense to have some cc if the brushing is doing it’s job and the chlorine is killing what it’s supposed to? I’d expect to see that?
Don't get too hung up on CCs. .5 or even 1 can be attributed to normal operations, or because you're killing some extras outside of normal operations. It fluctuates from both processes and you may or may not time it right to see them.

Your tests are just a snapshot of that moment and don't necessarily tell you what was going on an hour ago (etc). So 1 isn't always terrible and 0 isn't always great.
 
Thanks for the CC reassurance.

Tonight’s test: fc = 14.5. I expect it to get right around 10 sometime tomorrow or early next day. Alkalinity first then balance ph?

We are expected to get rain thurs/fri, so I’ll be on top of the fc and maintaining it on the high end of the recommended range.

Vacuumed yesterday, brushing daily.
 
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Alkalinity first then balance ph?
Your 90 TA is great. The full TA range is equally OK, don't get caught up on 'ideal'. (Ideal *anything* for that matter, it's just how most pools of your style respond). Manage the PH in the 7s and the TA will settle itself where it wants to ne.
 
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Your 90 TA is great. The full TA range is equally OK, don't get caught up on 'ideal'. (Ideal *anything* for that matter, it's just how most pools of your style respond). Manage the PH in the 7s and the TA will settle itself where it wants to ne.
Hey New Dude!!

Here are today’s results:
FC 14.5
CC <.5
PH 7.5
TA 80
CYA 40

What’s swimmable? I keep seeing “between your range and slam level” but 14.5 seems high. We are hosting tmw. Hoping to swim toward the afternoon. It’s been cloudy all week.
 
Here is the chart you need:
screenshot_20230327_210207_chrome-jpg.479126


Note that with your CYA of 40 your SLAM level is 16. As such anything below FC of 16 is swimmable.
 
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The Ph is invalid at 10+ FC. Don't even bother until it's below 10. (y)

The rest is great.



Between min and SLAM for your CYA level. All levels on the chart are equal. As the CYA goes up, so does the FC levels.

For your 40 CYA, that's 3ppm to 16ppm, so long as you can see the bottom of the pool.

View attachment 519848
Right right the ph test below 10. I forgot. Tired. Thanks for your input!!
 
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Solid. Will keep an eye on the chlorine. Tested twice today and added a little jussssst to make sure I don’t approach my mustard slam level. Thanks for the tip on it going quickly in the beginning then slowing down on loss - I would have definitely had a meltdown thinking I had an issue. We brushed already today. Will brush again tonight.

We are hosting a bridal shower Saturday. The hope is we can swim for the “after party.” It’s hot as Darn here and the pool gets smacked with sun from about 9:30am-6:30pm, so if I get lucky, we can swim Saturday. If not, oh well.

Thanks for being so kind.
What’s up dude! Been a minute. I have a “maintenance” question if you don’t mind. Our regular maintenance includes brushing every few days. Chlorine has been in proper range since slamming (and mustard slamming) after it came down from the slam. Is it normal to have some dead algae after brushing? White/gray at the bottom. Or - is the expectation of a maintained pool to never have any issues even after brushing? I can’t figure out if that’s the point of a maintained pool, or if it’s signs of a problem.
 
Anytime you suspect algae, Overnight Chlorine Loss Test. If you lose FC overnight, its algae. If you hold FC overnight, it's likely environmental. I have crud blowing in my own pool right now as mother nature started shedding up by us recently, so I'm 50/50 which way its gonna go. Lol.
 
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