Depending on the pool,

its orientation to the sun, water hardness, etc.

The frequency of grouting required may vary,

As a general rule, it should be renewed every 3 to 5 years.

Problems or inconveniences which can cause poor or non-existent grouting in your pool:

1. You can generate the detachment of the Gresites (this can cause many other problems in the pool).
2. In some cases it can be observed a dark or black color in the joint between the tiles, which is not easily removed.
3. It is an excellent crop of algae. These have a place to proliferate in the gap or joints between the Gresites, since they can pass behind the Gresite and therefore will come out constantly and will be difficult to eradicate.
4. In cases where grouting is almost non-existent, it could be dangerous for bathers, since the Gresite, not having the joint between one and the other covered, would be exposed, and therefore could be sharp on its edges.
5.