I'm doing all tests per the laminated instruction sheet. CH is with 10ml.
Chemical levels for new plaster pool
- Thread starter old_monk
- Start date
- Jul 21, 2013
- 65,308
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
25ppm difference is one drop and within normal testing error. I would not be concerned with one or two drop differences in tests.
Thanks! Your insight (which comes from experience) helps. I have added early afternoon test results to PoolMath.
Added the evening logs. Leaving pH hovering at 7.8, or shall I add an Oz of MA to bring it to 7.6? It's gonna drift up anyway.
- Jul 21, 2013
- 65,308
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
- Feb 6, 2015
- 7,813
- Pool Size
- 12300
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
Your PoolMath logs aren't showing.
Since you said it's enabled in PoolMath, be sure you are signing into PoolMath using the same info as you use to sign into the forums.
Since you said it's enabled in PoolMath, be sure you are signing into PoolMath using the same info as you use to sign into the forums.
I'm not sure why its not showing to you, I'm using same login in App and in forum and I can see my PoolMath logs in forum. Is there another setting somewhere?
edit: it should show link to the logs when you click my id, I just tested by logging out and can see the logs as a visitor.
Last edited:
- Jun 1, 2018
- 16,019
- Pool Size
- 26000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
- Feb 6, 2015
- 7,813
- Pool Size
- 12300
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
Added the test results for today.
One question - sand filter needs backwash badly, I followed the procedure (pump off, push lever down) but valve is not moving at all. Am I missing something or it's a faulty valve?
One question - sand filter needs backwash badly, I followed the procedure (pump off, push lever down) but valve is not moving at all. Am I missing something or it's a faulty valve?
- Jun 1, 2018
- 16,019
- Pool Size
- 26000
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
Are you attempting to only move it clockwise?
If its been a long time since the valve was moved it can be a little tough.
This is a brand new filter correct?
If so - call the builder and get the valve replaced under warranty.
You can take them apart and lubricate the parts but a brand new one shouldn’t need this.
Have you ever seen it be moved from filter mode?
It's a new setup, Day 12 today so first time rotating it.
I have let the builder know.
I have let the builder know.
Added today's results. TA is back at 80 on its own after dipping to 40 early last week.
Logs updated.
PB sent a guy to address the sand filter valve issue and then we did first backwash yesterday. Filled the pool to half skimmer.
TA is reading higher at 90, was mostly 80 or below. pH stayed around 7.8 all day yesterday, first time no MA add the whole day.
Please review the logs and let me know if I need to watch anything specific. Half way thru the 28 day startup period.
PB sent a guy to address the sand filter valve issue and then we did first backwash yesterday. Filled the pool to half skimmer.
TA is reading higher at 90, was mostly 80 or below. pH stayed around 7.8 all day yesterday, first time no MA add the whole day.
Please review the logs and let me know if I need to watch anything specific. Half way thru the 28 day startup period.
- Jul 21, 2013
- 65,308
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Thanks!
Any feedback whats causing TA to move like that? Also water fill (approx 16'x32'x1.5" vol) didn't cause CYA to drop, is that expected?
- Jul 21, 2013
- 65,308
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
You are expecting a level of precision and repeatability that does not exist in pool chemistry testing.
pH and TA will drift up.
CYA testing is imprecise enough that it takes a big movement to show up in testing.