Calcium Hardness

Topics related to maintaining your Calcium Hardness level in your swimming pool or hot tub.

Salt Water Pool Conversion Guide
Salt Water Pool Conversion Guide

If you’re a pool or hot tub owner and are interested in the growing trend of salt water pool conversion keep reading to learn more about the process!

A Beginner’s Guide: Hot Tub Chemistry 101
A Beginner’s Guide: Hot Tub Chemistry 101

Using the Calcium Saturation Index to Calculate Your Pool’s Health
Using the Calcium Saturation Index to Calculate Your Pool’s Health

The Calcium Saturation Index (CSI) is a helpful tool for testing your swimming pool’s health. Read on to learn how to use it!

What is Calcium Hardness?
What is Calcium Hardness?

Introduction to Swimming Pool and Hot Tub Chemistry
Introduction to Swimming Pool and Hot Tub Chemistry

This article describes the chemistry involved in keeping your pool or hot tub safe and your water crystal clear.

Popular posts

The Facts About Pool Algaecide
The Facts About Pool Algaecide

Want to learn more about algaecide? Read on to find out when to add algaecide to your pool maintenance routine and other helpful tips.

Can You Over Shock a Pool?
Can You Over Shock a Pool?

In this quick guide, we’ll answer the question “can you over shock a pool” and unveil the factors to consider when shocking a pool.

The Relationship Between pH and Total Alkalinity
The Relationship Between pH and Total Alkalinity

Maintaining both pH and total alkalinity in your swimming pool is important for keeping your pool properly sanitized and non-corrosive. Total alkalinity is to pH what cyanuric acid is to free chlorine. Total alkalinity stabilizes pH levels. The ideal pool pH level is 7.4 to 7.6. The ideal total alkalinity level is 80 to 120 ppm.

What Should Chlorine Levels Be in Swimming Pools and Hot Tubs?
What Should Chlorine Levels Be in Swimming Pools and Hot Tubs?

The Association of Pool and Spa Professionals recommends free chlorine levels for both swimming pools and hot tubs be kept between 2.0 and 4.0 ppm. However, the Center for Disease Control recommends free chlorine stay above 1 ppm in pools and 3 ppm in hot tubs.