When cleaning the swimming pond, a certain regularity of the mostly mechanical work is important. In addition to regular cleaning actions and the winter preparation of the natural pool in autumn, the sediments on the substrate should be completely removed at the beginning of the bathing season.

The water in a swimming pond should be checked regularly

Whether frosty or mild, every winter leaves its unmistakable traces in the natural pool, so cleaning the swimming pond is the order of the day at the start of spring. A mixture of plant residues, leaves and sludge collects on the pool floor and is primarily found in the deep water of the swimming pond.

Start the water cycle

Water with a high sediment content should be skimmed off generously, as it contains a lot of nutrients and therefore causes new algae to form quickly. As well as pool water from a site's outsourced soil filter (complete suction here!), it should be diverted onto the lawn or garden beds, where it is an excellent natural fertilizer for flowers and vegetables.

Cleaning of the regeneration zones with plant pruning

Depending on the size, a thorough cleaning of the swimming pond can lower the water level by 30 to 40 cm, so that the plants on the edge of the facility can now be reached more easily. In the area that has been drained in this way, the strong-rooted and reed plants can now be easily cut back. Instead of using rakes or rakes, it is better to remove stuck leaves or dead plant remains with a leaf blower so that the roots and leaves of the neighboring smaller pond plants are not damaged.

Check the water when cleaning the swimming pond

After the sediments and deep water have been removed, it is advisable to carry out a thorough water analysis, paying particular attention to the phosphate and nitrate levels. This not only helps the pond plants and limits the formation of algae, but is also much healthier for the bathers. Here are the most important water parameters for a temperature range between 4 and 30 °C (16 to 26 °C in summer and 4 to 14 °C in winter):

  • Acidity: pH 6.5 to 8.5 (optimal 7 to 8)
  • Total hardness (GH): 8 to 25 °d (optimal 12 to 18)
  • Carbon hardness (KH): 6 to 18 °d (optimal 10 to 14)
  • Nitrite (NO2): maximum 0.2 mg/l (ideally < 0.1)
  • Nitrate (NO3): maximum 50 mg/l (ideally < 25)
  • Ammonia/ammonium (NH4 or NH3): maximum 0.5 mg/l (ideally < 0.1)
  • Oxygen (O): 5 to 10 mg/l
  • Carbon dioxide (CO2): maximum 30 mg/l (ideally < 20)

tips

Before refilling, be sure to check your drinking water for the guideline values mentioned above. The drinking water supply companies sometimes change the origin of the wells, so that the water values can fluctuate.

Category:

Garden design