Used CLR to remove scale

[Azmp1]

Moved from here.
I know this is an old thread, but wanted to post that I just used CLR as well to clean out the buildup on my concrete paver raised beam wall. It did the job great. Some of the CLR of course when I rinsed out the wall it went it to the pool. So I’m hoping the amounts are too small and when deluted with pool water aren’t going to pose any issues...

 

[Texas Splash]

Nice to hear it worked for you. In a 32K pool, I doubt there would be much (if any) side effects. Did you spray it on full strength and let it sit for a bit? What did you use to scrub with? It might help others.