Algae on tile grout just in the corners


May 5, 2018
Fort Myers/fl
Is it common to have algae on the grout above the water in the corners of the pool.?The pool is rectangular with some corners worst than the others.I use a Taylor test kit and water is balanced and crystal clear. I scrub the corners with a brush and that helps. Is this something I need to worry about?


Mod Squad
TFP Expert
Bronze Supporter
May 3, 2014
Laughlin, NV
The water is wicking up the grout as it is not sealed. So it is not an issue with the pool water.

Keep brushing it with chlorinated water.