Pool Total Alkalinity

Total alkalinity and weekly pool water maintenance. Simply add sodium bicarbonate or pool acid to make adjustments. Common mistakes to avoid.

You can learn how to easily increase and decrease your TA with no "pH bounce" in your inground and above ground swimming pool.

Here are the few simple steps you need to know. They're not difficult steps but they do require a bit of patience.

Your TA is just that, how much alkaline substance is in the water. Too high or low and your pool water quality will be compromised.

When it's in check, all of the other chemicals will be much easier to maintain. This saves you time and money immediately and in the long run. 

How To Test Alkalinity

How To Raise Alkalnity

If the TA is high, your pool will experience an increased demand for muriatic acid. You can also increase the chances of a cloudy swimming pool.

Learn even more about your pool's Total Alkalinity. What to do and what to avoid for benefits that last all season long. Click on the eBooks below and get started.

Too low will cause problems with pH “bounce” and possible green pool water. I recommend testing your water alkalinity levels at least once per week. Once you have it in range it should change very little.

If and/or when you do need to make any adjustments to your TA you can go to this page to learn how to make the proper adjustments.

Problems With High or Low Pool Total Alkalinity

With high or low TA your pool can experience:

  • Decreased effectiveness of your sanitizer
  • Swimming pool stains
  • Scaling or etching of your pool plaster
  • Swimming pool pH bounce
  • Calcium deposits on the water line
  • Eye and skin irritation
  • Unusual wear on filtration components
  • Increase demand for pool acid or Sodium Bicarbonate
  • Wasted money and time

When a pool is unbalanced and out of control, it can be the most frustrating time for a pool owner.

Take the time to educate yourself on the proper way to balance your pool.

You need to have both the knowledge and understanding of how all the elements work together to give you the spa and pool perfect for you.

Ideal Range For TA

The ideal range of your TA for plaster pools is between 80-120ppm and for all others 95-105ppm. 

At the proper level, you will find the:

  • Pool chlorine will continue to sanitize properly
  • The pool pH will be stable
  • Less need for a calcium hardness increaser

If you have contaminated well water it will make this process a little more difficult.

Please remember these are ideal ranges, but we don’t live in an ideal world. If you have a plaster pool (including salt water swimming pools) and the total alkalinity is 110ppm or 75ppm, don’t sweat it.

Allow yourself and your pool a little grace.  

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If you have a chemical related issue, please give the chemicals readings, type of filtration system, what you've done or are trying to do, etc..

Cyanuric Acid
Sand, Cartridge, DE Filter

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What Other Visitors Have Said

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Pool Green and No Alkalinity 
I have been working on this pool for a month, never had an issue with not having clear water. I have shocked multiple, multiple times, added at least …

What Should I Do First, Treat High pH Level, Add Salt or Add Conditioner(cya)? 
Chlorine: 0/0 reads really low pH: 8.4 alkalinity: 18-240 Hardness: 1000 Cyanuric acid: 30-50 Salt: 1900 ideal is 2700-3400 I would like to know …

What To Adjust First, Chlorine Or Alkalinity 
I have a 15000 gallon pool. My salt water chlorinator is not producing chlorine. Is this becuase my pH is so low? When I tested the alkalinity, …

Pump Off When Raising And Lowering TA (Total Alkalinity)  
Remember: The pump motor MUST be off when increasing or decreasing your pool total alkalinity. WHY (pump off)? Give reasons for it, please! …

Total Alkalinity..310ppm on a 30,000 gallon pool 
My pool total alkalinity is at a 310 and pool is cloudy. All other chemistry is fine. I was told to add 4 gallons of muriatic acid 3 times a day and retest. …

How Much Muratic Swimming Pool Acid Is Too Much? 
How much muriatic acid is too much for this pool? I have a 5000 gallon aboveground pool. I filled it up for the first time my swimming pool total alkalinity …

Lowering TA  Not rated yet
Chlorine 3.5 pH 7.4 Alkalinity 150 Hardness Cyanuric Acid 60 DE Filter I used to have my TA @ 210 and my ph @8.2 y put some miuratic acid with …

Low pH and High Alkalinity - Which Do I Fix First Not rated yet
After 15 yrs of pool ownership I'm having a horrible time with my pool. Out of the blue I've developed large black algae spots on my steps and bottom of …

High Alkalinity (TA) & pH For Low CYA Not rated yet
I added sodium bicarb to raise the pH in my pool. It got the pH right, but the alkalinity is now very high. How can I reduce the alkalinity without …

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