I have a noticeable, hard calcium build up along my trim tiles. I've used a descaler spray but to no avail. Not sure if I should seek professional help (bead blasting) or tackle this on my own. I need a powerful descaler and would prefer not to directly handle muriatic acid (MA)--the scent reminds me of death! Can somebody recommend an excellent descaler for the tiles?
Also, I noticed that there are some scaling (or what I think it is) inside the spa, specifically around the edges of the seat and the steps. Can I remove the scaling using a pumice stone or is there a chemical additive that I need to apply? It seems like scaling inside the pool is more prevalent in the spa than in the pool. In this case, can I introduce MA in the spa and jst have the water with MA re-circulate only in the spa so I can tackle the build up? Is this safe? Or is it time for me to seek professional help?
I appreciate any advice you can give me and I thank you in advance.