Cleaning calcium from pool tile using modified Harbor freight soda blaster
The unit I used was a $129 Harbor Freight 40 lb soda blaster designed for Armex XL blasting media (baking soda). The soda does not do a thing on removing calcium scale so don't waste your time, it's too soft. The soda is much finer than what I used, Maxx strip PF2 (pool finish 2), which is fine grade specifically made for pool tile …
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