Alkalinity Calculator

Calculate how much baking soda or acid to adjust your pool total alkalinity (TA).

Total Alkalinity Adjustment

Pool Volume (gallons) Don't know? Calculate it here

Pool Type

Current TA (ppm)

Target TA (ppm) Recommended: 80-120 ppm for regular pools

Tip: Baking soda (sodium bicarbonate) raises both TA and pH slightly. Add with pump running, broadcast over surface. Wait 30 min and retest. Don't add more than 2 lbs per 10,000 gallons at once.

What is Total Alkalinity?

Total Alkalinity (TA) acts as a buffer for pH. It helps prevent pH from swinging wildly. Think of TA as the "anchor" that keeps your pH stable.

Target TA Levels

Pool Type	Target TA
Regular Chlorine Pool	80-120 ppm
Salt Water Generator (SWG)	60-80 ppm
Plaster/Gunite (new)	80-100 ppm

TA Too Low?

pH bounces up and down (hard to control)
Water becomes corrosive
Metal staining more likely

TA Too High?

pH keeps rising (hard to lower)
Cloudy water more likely
Scale formation on surfaces and equipment

Alkalinity Calculator

Total Alkalinity Adjustment

Raise TA

Lower TA

What is Total Alkalinity?

Target TA Levels

TA Too Low?

TA Too High?

My Pool Settings

Alkalinity Calculator

Total Alkalinity Adjustment

Raise TA

Lower TA

What is Total Alkalinity?

Target TA Levels

TA Too Low?

TA Too High?