Saturation Index Calculator

pH
TEST
pH FACTOR
PF
CALCIUM
HARDNESS
TEST
PPM
CALCIUM
FACTOR
CF
TOTAL
ALKALINITY
TEST
PPM
ALKALINITY
FACTOR
AF
TEMP.
F
TEMP.
FACTOR
TF
7.0 7.0 5 0.3 5 0.7 32 0
7.1 7.1 25 1 25 1.4 37 0.1
7.2 7.2 50 1.3 50 1.7 46 0.2
7.3 7.3 75 1.5 75 1.9 53 0.3
7.4 7.4 100 1.6 100 2 60 0.4
7.5 7.5 150 1.8 150 2.2 66 0.5
7.6 7.6 200 1.9 200 2.3 76 0.6
7.7 7.7 300 2.1 300 2.5 84 0.7
7.8 7.8 400 2.2 400 2.6 94 0.8
7.9 7.9 800 2.5 800 2.9 1.5 0.9
8.0 8.0 1000 2.6 1000 3 128 1

 

PF
pH
CF
CALC
AF
ALK
TF
TEMP
SATURATION INDEX

 

Saturation Explanation

If the result of this calculation is zero, the target goal, then the water is balanced. If the answer is less than 0, the water leans toward being corrosive. If it is greater than 0, then it is indicative of scale forming. An acceptable range is -0.3 to +0.3, with the optimum goal of 0 (zero). If the result is outside this range, adjustments should be made to the hardness, alkalinity and pH to bring it as close to zero as possible and ideally within the optimum ranges shown above. Be aware however, that while the water may be balanced from a corrosion and scaling point of view it does not necessarily mean that it is ideal for chemical efficiency and bather comfort.

About AES

Aquatic Environmental Systems was founded in 1983 to be a resource for swimming pool and water treatment professionals in the Southwest.  From a desk and a telephone in a walk-in closet, we have grown into over 6,000 square feet of space, eleven employees and five service vehicles in Arizona and New Mexico.  This has enabled us to better serve a diverse group of professionals in the water treatment and recreational water community in Arizona, New Mexico, El Paso and West Texas.

Employing the latest in proven technology, we are able to offer solutions for virtually all of the aquatic recreation and water treatment needs of our partners.

With the over 90 years of combined experience of our staff, you can be confident that we will provide solutions that are in your best interests.