00:00 - Intro01:43 - This pool wasn't an opaque green, it was translucent, tinging green.02:09 - We know of at least three reasons pools turn green.03:11 - We could safely rule out copper for this customer.03:43 - Jarred is a popular guy (phone rings).04:50 - The next day, the water was perfectly clear and blue, by increasing calcium relative to alkalinity.05:48 - We don't know why, but if you have too little calcium hardness relative to alkalinity, the water can turn green (but clear).06:18 - Dr. McNamara: Optimal ratio to inject CO2 is 4:1 (calcium to total alkalinity). If you're under 3:1, water can start to tinge green.10:43 - The white bucket test (add chlorine to green water and observe color change)18:08 - If you have algae taking over your pool, your algae is outpacing the killing rate of chlorine.19:12 - Control what you can control. CYA and chlorine, phosphate levels (indirect relationship, but important). What really matters is your free chlorine and CYA.24:00 - Wrapping up with two more topics:  CO2 feeders and Potassium Monopersulfate. Both can fuel algae growth.27:21 - Summary: pool can turn green for three reasons: copper, calcium/alkalinity imbalance, algae.27:55 - Thank you for listening!------------------------------------Connect with Orenda Technologies Website: 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/