- Jul 21, 2013
- 54,610
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
The calcium in cal-hypo accumulates just like CYA and high calcium will cause scaling on pool surfaces.
New plaster pool chemical balance
- Thread starter hcha2421
- Start date
- Jul 21, 2013
- 54,610
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Long thread on the NST tablets...
Poollife NST prime tablets
Currently I have one of those frog systems that is about to come out. I have looked and researched the liquid chlorine option and have determined that’s the route I want to go. One concern I have, if and when I leave for a period time and cannot add the required amount of liquid chlorine, what...
www.troublefreepool.com
Yikes. Sounds like it’s best to avoid the tablets all around. I’ll use them as minimal as possible.
- Jul 21, 2013
- 54,610
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Got my TF-Pro and ran these tests just now. My pool is roughly 14,000 gallons pending exact reading from meter. I have some muriatic acid I can add. Is it common for ph to rise often in a new plaster pool? Should I add any liquid chlorine? I’ve been a bit conservative on the tablets. I will do the rest of the tests when I’m back home.
Ph 8.2
Ch 2
CYA 40
Alkalinity 100
Ph 8.2
Ch 2
CYA 40
Alkalinity 100
- Jul 21, 2013
- 54,610
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Yes
Follow your start-up guide.
Keep your pH in the 7's.
Also the alkalinity test turns dark pink and not red is that common? This was the case with my cheap Walmart kit also
- Jul 21, 2013
- 54,610
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
The color change from green or blue to red/pink/whatever is what matters.
Okay good. And is it common to need to add small amounts of acid almost daily with a new pool to keep ph I’m the 7 range? I’m using the chemical calculator from this website to get my acid calculations based on ph level.
- Jul 21, 2013
- 54,610
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
What is the pH level when you add acid and what do you lower the pH to?
TA of 100 contributes to the pH rise. As your TA drops the rise will slow down a bit.
My Ph seems to like hanging out at 7.8 to 8.2. I add the acid and it comes down to eother 7.2 or 7.5.
- Jul 21, 2013
- 54,610
- Pool Size
- 35000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Let your pH hang out where it likes. Don’t reduce it until it is 8.2 and then only down to 7.6.
cwswifty
Well-known member
- Sep 14, 2023
- 117
- Pool Size
- 26500
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Jandy Aquapure 1400
There’s absolutely nothing wrong with it hanging out at 7.8 or 7.9. When hits 8.0+ it’s time to adjust but no need to go way down to 7.2. Maybe just 7.6 because it rises quickly through the low sevens and will rise slower in the upper sevens.