white residue or scale in fiberglass pool

[Poolhouse]

It feels slightly gritty but I cannot remove it manually or chemically. I worked diligently keeping my water balanced as you can see from my test results. I suspect this is damage to my fiberglass. When it is wet it looks okay but if it dries ( like when the water level drops) the walls develop a white haze over them. Really irks me as the pool is brand new! The fiberglass base color is black with cobalt blue and silver metallic flecks. Stunning, looks like deep ocean water. I fear over time it will appear less sparkly and less "oceany"and more like a black puddle. Oh well.

[karrde97]

I just noticed the same problem for my above ground pool. The water looks lime green yet everything tests perfect. When I stuck my hand in and rubbed the side, it was very course and whitish. I ran a scrub brush over it and it barely made an impact. What is it and how do I fix it?

[kelemvor]

You'd probably be better served by starting a new thread and including a full set of test results in your post as poolhouse did above. Photos can be helpful as well when you're talking about mean green.