I opened my spa and pool for the 1st time this month. I started the BBB method last year. I drained the spa for winter, but the cover leaked and it filled 3/4 up over the winter/spring seasons. It filled up to, but not over the top step (this is relevant later). I chlorine shocked it clear (using way to much chlorine, I used a 1lb bag in an 1100 gal spa). I used a test strip before shocking (yes, I am a sinner) and the PH was way over 8. I used muriatic acid to bring it down to 6.8 before I shocked it.
The problem is the plastic (3M colorquartz) feels like 40 grit sandpaper (no discoloration). It is rough up to the top step- so I am guessing it occured over the winter with the high PH. How do I fix this????
Current test (using a Taylor K-2006-.......... I have repented)
Water temp 98 degrees, outside air temp 68 degree (wife was enjoying the spa while I was testing)
PH- 7.8 (I did add some sodium carbonate to bring the PH up a little last week- I just added 2.5 oz of Muriatic to bring it down)
I stepped into my 57 degree pool down three steps and they are not rough(I do not drain the pool over the winter)- I have not gone all the way in the pool yet as it is just now clearing and coming down from it opening week of shock. It's reading are:
I am located in Maryland.
So- help.... how do I get my spa plaster smooth again??