HotTubPool is a free iPhone app developed by Pixelwand Ltd, falling under the Utilities & Tools category. This handy calculator is designed for hot tub, spa, and pool owners, offering precise calculations for various chemical dosages. It eliminates the guesswork by accurately determining the required doses for Calcium, alkalinity, pH adjustments, sanitizer, and stabilizer additions. Moreover, it features a water balancing tool to calculate the Langelier Saturation Index (LSI) for optimal system maintenance.

The app provides a range of common pool calculators such as Pool Volume Calculator, Flow Rate Calculator, Turnover Calculator, Minimum Filter Size Calculator, and Total Dynamic Head Calculator. HotTubPool aims to simplify chemical management and ensure a smooth operation for pool and hot tub owners.