Now you will start getting some more progress! So glad the main drain works!so couldn’t vac on waste for long. Wow fast water drain! I got a little bit of dead alge then stuck the hose in the deep and gobbled up 4 more skimmer basket full of leafs.
I also preformed vit c test. It appears the stains are metal. They disappeared instantly where I held it.
fc : 10.5, went ahead and added 4 cups of bleach
Yeah, you won't have to always vacuum on waste/drain