That might be scale. Is that about how low the water was drained?
brian water was a few inches higher than that. that was where all the dirt settled. did the same on the other bench step and that was fine. i got no other scale anywhere else that i can tell.
i have hit it with a puck and vit c so far.
my builder game me staintec. the company that makes bluetec. he said maybe a spot clean with that?
what do you think. i'm pretty bummed about this.
jim
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ok here are my numbers after pounding away today.
TA: 70 could it have gone down 30 already from 100 with adding all the acid I did. I added well over 100 oz
CH: 350
FC: 7.5
CC: 0
TC: 7.5
CYA: 50
Temp: 48
CSI: -.67 cause my water and PH are low. I totally messed up with the PH. I overshot.