00:00 - Intro01:49 - Most people mistake this problem for scale. But it's not scale.05:05 - This is a chemistry issue, not specific to brand of finish or pigment. This is not a cement or pigment failure, it's a water chemistry problem that can be prevented.06:01 - How this occurs during plaster application, exposure and startup.15:36 - How this occurs months or years later,  from aggressive water over time.21:04 - When we get calls about these issues, the answer is not always good news. We are not in the business of pointing fingers at who caused what.25:45 - Two causes of etching: not diluting acid, and using trichlor feeders, especially on pools with auto covers.28:35 - Summary. Thanks for listening!------------------------------------Connect with Orenda TechnologiesWebsite: https://www.orendatech.comBlog: https://blog.orendatech.comYouTube: https://www.youtube.com/user/OrendaTechnologiesFacebook: https://www.facebook.com/orendatech/Instagram: https://www.instagram.com/orendatechnologies/