BALANCING POOL AND SPA WATER

The Langelier Saturation Index was designed for underground water pipes used by municipal water districts. The Pool and Spa industry began using it in the early 60's, as our industry had no other water balancing system to guide us. Since then we have been modifying the Langelier because we have put on limits and conditions that were never part of Dr. Langelier's original index. We are not using the Langelier Index - even though the pool and spa industry still calls it the Langelier Index.

Have you ever wondered why there are so many opinions on how to run your pool chemistry? The answer is simple: if you base your science on an erroneous principle, then your conclusions will be inconsistent. That means the answers that the pool and/or spa professional comes up with will be inconsistent, adding to the confusion.

The Hamilton Index™ was developed by a pool technician for the pool and spa industry. This index was tested by field service and research over a period of 11 years. The index is so accurate, that in 20 years of field application, it has not needed to be modified.

Today, there are an estimated 400,000 pool and spas being run on the Hamilton Index™. Interestingly, in 1991, the National Pool and Spa Institute lowered the recommended total alkalinity towards the guide lines that the Hamilton Index™ has used for 25 years. But, of course, they are still calling it the Langelier Index.

Besides being very accurate, our 3-Step System in extremely easy.