Hey guys. So on a step I have in the deep end, I ended up with what I believe was a metal stain from some fertilizer I used in a nearby plant. In an effort to remove the stain my pool guy poured powdered chlorine into the area each week he came by. I also used a hard brissel brush and would try to rub some of it off. At some point I also used a pumice stone. Fast forward a couple weeks and now I see most of the stain is gone however now there are parts that are super bright/clean, however I dont believe this is good. When I rub my hand over it, it feels rough almost like the top layer of the diamondbrite is gone. In my infinity wisdom I used the pumice stone again and it seems like its turning the small spot I did into the same thing. So not sure if its the stone or the combination of chlorine and stone. In any event I want to get advice on how to fix this or make it look as close as possible to normal. I was debating resurfacing however not looking to redo the entire pool for an area that is 1ft x 1ft, although it is quite the eye sore. Any tips for a laymen would be appreciated!

I have a cal cooperage hot tub. a balboa spa pack and motors. I change to water in the tub and then the tub went to 110 I fixed that and now my pump 1 will only work on low. when I hit the botton to go into high it makes a noise and stops. I revised pump 1 and pump 2 wires and pump 1 will work in high. so I no the pump is ok, but I have looked everywhere online and cant find anything that is helpful