Mineral deposits can make your tiles look bad. It also hurts the tile, over time. WHY the deposits?
Simple, there are minerals in our water. As the water heats up, it evaporates and we add more water to keep the correct water level in the pool. This new water brings with it more minerals.
The minerals never evaporate or dissolve! What they do is attach themselves to your pool tile.
So, what to do?
We used to recommend emptying and refilling the pool every year for just this reason, get the mineral concentration reduced. However water costs have skyrocketed in our valley so that is no longer appreciated.
In the old days, folks used to use a lava rock and scrub the minerals off. The tile problem they found was that the lava rock actually scratched the tile and left it still looking bad, as in badly scratched.
It was fixing one thing and making a new pool tile problem.
Now days, we use high pressure bead peening. Depending on the t…