After using your pool for several years, your pool need repairs or renovation? The renovation or repair of your pool involves the change of your filtration accessories, of all plumbing and electric components (filter, pump, projectors, skimmers, etc.) as well as the ceramic tile joints or even the worn off ceramic tiles.
About the renovation of the ceramic joints: after a few years (usually about 5), they begin to appear cracked and dirty, providing sites for algae growth. It is when it becomes necessary to re-do the joints in order to avoid tile loss.