Sealing the garden pond is particularly important if there is excessive water loss, otherwise the biological balance will be upset. In order to locate all leaks, vegetation and fish must first be evacuated before the walls and floor are fully sealed.
Finding the leak in the garden pond is the most difficult task
Primarily somewhat older ornamental ponds tend to leak over the years, especially if they were made of concrete and the first hairline cracks form. But foil ponds also show certain signs of aging and quickly allow larger amounts of water to seep away. In the case of brick ponds, it is sometimes difficult to localize leaks safely. If only the bottom area is affected, applying an additional layer of clay can help. Which in turn means that to seal the garden pond, many or even all of the plants and animals must first be evacuated from the pool.
Eliminate leaks in the garden pond
Once the water has been drained and the substrate cleared, the search for cracks can begin. Roots that have grown through are often the cause of damage, which should now be easier to recognize. Experience has shown that sealing the garden pond only leads to lasting success if the entire pond is renovated, instead of just patching individual damaged areas. Since a general repair would usually only be possible with an unreasonable amount of time, material and money, concrete ponds should be sealed with the highest quality foil possible. The specialist trade has several types available, the most common consist of:
- polyvinyl chloride (PVC);
- polyethylene (PE);
- synthetic rubber (EPDM);
What to do if the liner pond leaks?
Here, too, thorough cleaning is first necessary in order to then find out what type of pond liner it is if it is to be repaired by gluing or welding. Repairs will only be successful if they are made with the same material and, moreover, the film thickness is identical. It is also important to ensure that the connection points of the film strips overlap as generously as possible. Beginning at the edge of the pond and with sufficient overhang, the foil is first laid over the embankment in the direction of the cove and bottom to the opposite side - strip by strip. The protruding ends can be sunk into the ground or behind an additional panel be hidden.
tips
If you want to seal a cuboid garden pond, the sheets are best cut to fit. The inlets and outlets of the pond must be insulated particularly carefully from the liner so that no water later seeps uncontrollably into the ground.