I've seen the titular comment a few times and don't understand it. How does one complete a "proper" SLAM if you already have mustard algae? I'm assuming that's what I have because its chewing through chlorine at slam levels like nobody's business. Which brings me back to SLAM says you have to pass an OCLT first. How can you with mustard algae? Help me understand because after years and years of my pool humming in crystal clear perfect balance, my current situation has me immensely frustrated and upset.