As experts in pool and spa water analysis, the company has always been keen to educate on the importance of balanced water, otherwise known as the Langelier Index.

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When water is in balance, it is said to be neither corrosive nor scale-forming. In other words, it will neither dissolve an existing layer of scale nor will it deposit a layer of calcium scale. Unbalanced water can aggressively eat away at the pool's infrastructure.

The Langelier Saturation Index (sometimes also known as the Langelier Stability Index) was developed in the 1930's to determine a formula resulting in a single calculated number which is used to notify how much calcium is in the water. The golden result of just above "0" means the water is 'in balance'.

The Index is very reliable, using various parameters that can have an effect on the water balance and each is given a factor to give an Index value. Those parameters are: pH; Total Alkalinity; Calcium Hardness; Total Dissolved Solids; Temperature. Each of these parameters has

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an effect on each other proven by a formula.  The formula, however, can be complex to calculate - often leading to errors in determining the exact value.

We've now removed that complexity - for iOS and now for Android users. Simply download our App from Google Play  or iTunes. 

With PoolM8 you can:

√  Measure Langelier Index for balanced water

√  Use simple scroll functionality to adjust results

√  Automatically calculate as results are entered

√  Store results in observation history

√ Share results electronically