First opening...first real thread. 30' radiant ABG with 4" coping.
- Thread starter doc8404
- Start date
Figured my pH would've dropped more. About 3.5 pounds of lo and slo.
backflushed and aerated a little this morning. Just started adding more water after a rain last night.
Need to vacuum or throw the bug in before the bio demand goes too high.
FC dropped to 5
CC 0.5 (was 0.0)
TA 200 (was 250)
pH <7.5 (was >7.5)
backflushed and aerated a little this morning. Just started adding more water after a rain last night.
Need to vacuum or throw the bug in before the bio demand goes too high.
FC dropped to 5
CC 0.5 (was 0.0)
TA 200 (was 250)
pH <7.5 (was >7.5)
I must've made some errors last time.
New results
5/25 1230
ph 7.2
FC 4.5
CC 0.5 (bet it is less if I dilute and test)
CYA 60 (was 45-50. Haven't adding anything with cya in 3 weeks)
TA 240
adding 39oz of 10% and will aerate this weekend.
I have a feeling a quart every 2 days will be my standard without bather load.
New results
5/25 1230
ph 7.2
FC 4.5
CC 0.5 (bet it is less if I dilute and test)
CYA 60 (was 45-50. Haven't adding anything with cya in 3 weeks)
TA 240
adding 39oz of 10% and will aerate this weekend.
I have a feeling a quart every 2 days will be my standard without bather load.
- Jun 22, 2014
- 47,854
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
Thanks for the help! Hope to be in this weekend to brush more and clean up.
Glad we left the solar cover on, dropped lots of pollen
Glad we left the solar cover on, dropped lots of pollen
- Jun 22, 2014
- 47,854
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
Those are good numbers indeed. You can swim. However now that you've listed your CYA as possibly 60, you don't ever want to let FC go below 5. You're in my territory now. 
That's my current CYA. So I always keep my FC around 7-8. If I ever get to 6 I'm already nervous.
That's my current CYA. So I always keep my FC around 7-8. If I ever get to 6 I'm already nervous. Thanks. Water felt great. Numbers will change tomorrow. Vacuumed and some of the pollen and stuff got in after I rolled the cover off and back on. Such is life.
5/26
5:51p after swimming
ph 7.2+++
FC 5.0
cc 0.0
TA 240
added 36oz 10%
want that PH up and TA down. Need to remove solar cover and aerate to avoid use of Chemicles.
5:51p after swimming
ph 7.2+++
FC 5.0
cc 0.0
TA 240
added 36oz 10%
want that PH up and TA down. Need to remove solar cover and aerate to avoid use of Chemicles.
- Jun 22, 2014
- 47,854
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
It will be an on-going chess match for a while I'm afraid. pH lowered to 7.0-7.2 to kick the TA in the rear, then aerating like crazy to pump-up the pH again so you can do it all again. You'll be a pro at it before too long.
- Jun 22, 2014
- 47,854
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
They each have their own issues, but I'd say a low pH at 6.8 or below has the potential for more immediate effects. The high TA "should" try to let that pH rise.
I think my CYA is off due to me being new to the testing. It probably is 50 and not 60
5/28
0900 EST
OTO 5
FC 6
CC trace
pH >7.2<7.5
CYA 50
TA 220
5/28
0900 EST
OTO 5
FC 6
CC trace
pH >7.2<7.5
CYA 50
TA 220
- Jun 22, 2014
- 47,854
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
That will work. 
Now just watch the FC each day to keep it in the 6 range like you're doing. That's perfect.
Now just watch the FC each day to keep it in the 6 range like you're doing. That's perfect.Wish the OTO went that high. Running DPD each time.
I think I'm good with shifting to OTO and all else weekly.
I think I'm good with shifting to OTO and all else weekly.
Anything I should be worried about or doing anything differently with my PH shooting up like this since three days ago? Have not added anything other then bleach and a lots of swimming.
FC 5.5
CC 0.0
TA 220 same as last time
pH 8.2
ready to add some slo and lo since I have it.
FC 5.5
CC 0.0
TA 220 same as last time
pH 8.2
ready to add some slo and lo since I have it.
- Jun 22, 2014
- 47,854
- Pool Size
- 17888
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
Your pH is climbing quickly primarily because your TA is so high. To assist in keeping pH lower longer, you need to lower TA by following the TFP Pool School - Lower Total Alkalinity page. It takes a bit of time and effort, but it works.
Was hoping it would drop as I've been aerating the past three days. Will keep working it
with our FC so high, what do you use to test and how often?
I figure OTO doesn't work in this case.
with our FC so high, what do you use to test and how often?
I figure OTO doesn't work in this case.