Update: once I could see the not-a-calcium-nodule in the daytime I realized it was sloppy plaster and wasn’t of huge concern.
But PB came out to look at the iron stains, which they’re insisting are organic, even after I pointed to the one stain that had responded to ascorbic acid. He rubbed one of the stains with a pumice stone. There wasn’t any improvement in the spot, but that didn’t stop them from gaslighting me, trying to convince me that it had worked and so it proved it wasn’t in the plaster itself and was organic. It was bizarre, like what I was seeing with my own eyes wasn’t real.
He even offered to dive in and pumice them all today, but also assured me these hundreds of organic stains (most on vertical surfaces) would come out once I could raise the chlorine in 30 days.
I’m frustrated and confused. I’m fine treating them myself, but I’m just really disappointed. In them — for either being dishonest or for not knowing that AA won’t treat organic stains, in myself for not researching before hiring them. I was just so excited to start with a blank slate because the previous owner of this home left me a mess of a pool to try and fix; the idea of spending $11k to start out fighting metals within three days of fill is just — sigh. They knew I’d battled metal staining with the old plaster. They’d assured me they used a special filter for the water to fill (does cotton filter metals?).
Ultimately I feel confident these can be treated with chemicals, but I’m unsure if I should do it now or wait until the plaster has further cured. I added a startup dose of Jack’s Magic Blue Stuff (with the PB’s assurance it wouldn’t void the warranty) and a Culator (I know results aren’t clear on these but figured it couldn’t make anything worse) to the pump basket.
Any help would be really appreciated.