TestWater is a brand new application built to analyse test results based on rules to provide detailed recommendations and a customised report.
My previous testing application, WaterTest, has been very successful but it's limitation was that it was developed with rules set by me. While suitable these were not flexible for other regions or climates and while it did calculate LSI it did not calculate it more accurately than 1 decimal place. There are also more factors your pool technician takes into account when testing your water than just the water results. These attributes such as the look of the water can have a large impact on the recommendations provided.