* Removing sludge from the bottom of the water
* Removing leaves and other waste from the surface of the water
* Periodical filtering or water replacement from ponds
* Algae removal
* Restoring air-tightness
* Cleaning recirculation pumps and filters
* Bulb replacement (for underwater lights)
* Replacing deteriorated pipelines, pipes and fittings.
* Planting perennial flowers, annual flowers and season flowers
* Treating water with the help of specific treatments.