Calcium hardness has a bad reputation, and that reputation is undeserved. When people see calcium scale or plaster problems that are white in color, they immediately assume it's calcium's fault. In reality, calcium is actually your best friend for water balance, as it is remarkably stable, and able to help you keep your pool in LSI balance year-round.
UPDATE, June 2019: The Orenda App has grown to become one of the most popular and widely used swimming pool apps in the world. We are grateful for all of our users, and are pleased to have created such a valuable tool.
This article will walk you through how to use our app, the LSI Dosing Calculator, and other features.
Pool builders, plaster applicators, and service techs know that a pool startup can be a real pain. Plaster dust is just the tip of the iceberg. For residential pools especially, most pools have water filling them within hours of finishing the plaster. That means the tap water and its chemistry is immensely important in the curing process (hydration) of new pool plaster.