Check your CSI using Pool Math. If it is close to 0.0 then you are good to go. If it is not then you can play with the numbers to see what needs to be adjusted to make it close to 0.0. Know that the water temp plays a big part in the CSI
Here is some info on CSI:
"CSI Calcite Saturation Index - requires pH, TA, CH, CYA, Temp, uses Borate, Salt
Less than -0.6 is suggestive of problems for plaster, tile, stone, and pebble pools.
Greater than 0.6 is suggestive of problems for all pools."