Attaching the pond liner to the edge can be tricky in individual cases - depending on what the bank area of the garden pond is like. How to do it correctly, what you have to pay attention to and what fastenings you need, you can read in our article.
How do I attach the pond liner to the edge?
To attach the pond liner to the edge, pull it up to the upper edge of the soil, use bank mats to cover it and attach the liner to the bank - either with stones, squared timber or to walls with strips.
Capillary barrier
Every pond needs a so-calledcapillary barrier on its edge. It is intended to prevent water loss through capillary action.
If the surrounding soil were in contact with the bottom area of the pond, the capillary action of the soil would essentially suck the water out of the pond. The pond liner prevents this inside the pond, but the two layers come apart at the edge of the pond.
For this reason, the pond liner mustalways be guided to the upper edge of the soil and secured there. Otherwise, the capillary action of the soil would pull the water out of the top of the pond. A sign that something like this is happening is usually swampy areas around the pond. To prevent the liner from slipping down, you must attach the pond liner to the edge.
Ufermatten
Shore mats can be used to conceal the raised pond liner (€10.00 on Amazon). These are mats made of fiber and many pores. They provide good support for bank plants.
Depending on how the pond bank is designed, you lay the bank mat:
1. In the case of a so-called bank terrace, 10 cm below the water surface, the bank mat is placed there and pulled over the edge of the embankment over the pond liner. While the pond liner still extends into the bank ditch and is attached to the end, the bank mat already ends in the downward edge of the ditch.
2. On steep pond banks without a bank terrace, the bank mat is pulled up over the steep bank and attached to the upper edge of the pond together with the pond liner. The pond liner is then continued and attached separately (preferably clamped between two stones or two squared timbers)
The pond liner must be pulled up completely and secured to a side wall on the bank. This is the case, for example, with:
- Palisade walls
- Stone walls
- Walls made of wooden posts
If such walls form a bank boundary, you can also screw a strip onto the wall under which the pond liner is attached. It is then folded over the bar again from above. The embankment mat is then placed over it and conceals both the film and the strip.
Tip
Pay enough attention to the border design - it is extremely important. If you are planning your pond yourself, it is best to discuss your planned edge design with a specialist to avoid later problems.
