When your home DIY or commercial pond or water feature project exceeds the realms of pre-formed poly pond liners then it’s time to start designing and building with flexible pond liner. These liners allow you to create ponds and water features of virtually any shape and on any scale. The only real restriction is your imagination! Here’s our guide to flexible pond liners in Australia.
The primary advantage of flexible liners is their versatility. They allow construction, on virtually any scale, of water features and ponds of every shape and style a design concept calls for. You may need:
All of this can be easily achieved using flexible pond liner.
Flexible pond liner varies in thickness with the type used. They range from 0.5mm to 1.2mm thick for high-strength commercial applications. Their flexibility is part of their secret for resisting damage and punctures – they tend to flex and mould around anything which may otherwise cause damage. This same flex also helps to prevent stress tears.
Of course, it is important to ensure the risk of punctures is avoided by appropriately preparing the substrate bed on the liner that will be laid. Should damage occur then it can be easily and reliably repaired using a suitable repair kit or jointing tape.
Flexible liners also have a very long lifespan. You’ll find PVC liners carry a 10-year UV warranty and EPDM liners carry 20-years. Now bear in mind, this is only the UV warranty period. There are real-world examples of flexible liners still performing well in the landscape after more than 40-years!
Probably the greatest misconception is around the amount of substrate preparatory work required for flexible liners.
A typical instal simply involves excavation to form. If the soil is free from potentially damaging material, such as rocks and roots, then the flexible liner can be laid directly onto this base.
If the soil contains puncture risks that cannot be easily or economically cleared then the excavation is increased in size by as much as is required to allow for a safe bed to be formed. This bed will usually be a damp river sand or similar which can be easily moulded to shape.
In some instances, you may find that such extra preparation is only required in one part of the excavation. It will always vary with the site and the project.
When you look at flexible liners you’ll find two main types are available PVC and EPDM.
Both PVC and EPDM liners are available from the roll, when longer lengths are required, or in pre-cut flat packs.
For larger projects buying from the roll will generally be more economical as you’ll reduce wastage, only buying as much as you need. It also has an advantage in installation as less joins are required meaning your project can run faster.
The sheet thickness of flexible liner is an indicator of durability. PVC tends to only be available in 0.5mm whereas EPDM is available in a number of thicknesses;
As you would anticipate, the thicker liner will be more expensive.
Pre-packed sheets and liner from the roll will give you the size to cover the bulk of your projects, there will always however be situations where much larger sheets are required. The solution to this is simple joining tapes. When a specific tape exists for your liner type it is good practice to use it although there are tapes that can be used on both PVC and EPDM.
It is critical for creating a quality join that instructions for use be followed very carefully as some do recommend using specialised primers before applying tape.
If you have a project in the pipeline, large or small, and want to take it to the next level of quality and professionalism then it’s time you switched to using a flexible pond liner. Cost effective, durable, long lasting and easy to install. Pond liner are the ultimate solution for ponds and water features.