California Polytechnic State University’s National Pool Industry Research Center conducted a study the Ph Problem from saltwater. Researchers tested pH levels every Monday, Wednesday and Friday over the course of several weeks. pH was adjusted to 7.4 after every Friday reading. Over the weekend, pH spiked from 7.4 to 8.0.
The pH in a pool or spa impacts the sanitizer efficacy of chlorine tremendously. For example, at a pH of 7.2, chlorine is 65 percent effective; at 7.8, 32 percent effective; and at 8.0, 20 percent. As you can see, chlorine effectiveness decreases dramatically as the pH in water increases.
grout can dissolve.
Visit Pool and Spa News to read the entire article. Pool Spa News Ph Salt Water Problem