💡 Important: the quantity of pond liner and underlay to order in a pack is expressed in square meters (m²). Remember to multiply the obtained length by the width to determine the required area / Free delivery in Belgium - Automatic calculation of shipping costs to Europe.
EPDM Pond Liner & Underlay Pack Aquitechnics — Quality selected by Aquiflor
How do you determine the size of your EPDM pond liner?
To choose the correct dimensions for your pond liner, use the following formulas:
-
Pond liner length = maximum pond length + (2 × maximum depth) + 1 meter allowance (50 cm on each side).
-
Pond liner width = maximum pond width + (2 × maximum depth) + 1 meter allowance (50 cm on each side).
A complete solution for creating a long-lasting pond
1. Choose the width of your pond liner
2. Enter the desired length
Select a width and enter the desired length.
Total area of your pond liner
0m²
This Aquitechnics EPDM Pack combines our 1.1 mm professional EPDM pond liner with a Premium 400 g/m² geotextile underlay reinforced with a high-strength nylon mesh.
You receive everything needed to effectively protect your pond liner against stones, roots and ground movement, while benefiting from waterproofing designed to last for several decades.
The complete solution for creating a long-lasting pond
💡 Important: the quantity of pond liner and underlay to order is expressed in m². Simply multiply the obtained length by the width to determine the required area.
🚚 Free delivery in Belgium – Shipping costs automatically calculated for all of Europe.
A professional, ready-to-install solution
The Aquitechnics Pack combines a high-quality 1.1 mm EPDM membrane with a Premium 400 g/m² geotextile underlay reinforced with a high-strength polypropylene mesh.
This gives you a complete solution for creating long-lasting waterproofing while effectively protecting the membrane against stones, roots, gravel and ground irregularities.
Designed for garden ponds, natural ponds, natural swimming pools, waterfalls and streams, this pack offers reliable, durable installation perfectly suited to the most demanding projects.
Why choose the Aquitechnics Pack?
✅ Professional 1.1 mm EPDM membrane
A high-end membrane offering excellent mechanical resistance, great flexibility and an exceptional service life.
✅ Smooth EPDM surface
Easier to clean than a textured membrane and helps limit the accumulation of organic deposits.
✅ Premium 400 g/m² underlay
The geotextile underlay provides long-lasting protection for the membrane against:
✔ stones
✔ roots
✔ gravel
✔ ground settlement
✔ pressure points
Its 400 g/m² density provides significantly greater protection than standard geotextiles.
✅ Polypropylene mesh reinforcement
The woven mesh greatly improves tear resistance and makes handling easier during installation.
✅ Safer installation
The underlay absorbs ground irregularities, distributes mechanical stresses and considerably reduces the risk of punctures.
✅ A solution designed to last
Combining a high-end EPDM membrane with a Premium underlay provides waterproofing designed to retain all its performance for several decades.
How do you calculate the dimensions of your pack?
To determine the required size:
Length
Maximum pond length + (2 × maximum depth) + 1 meter allowance (50 cm on each side).
Width
Maximum pond width + (2 × maximum depth) + 1 meter allowance (50 cm on each side).
💡 The quantity ordered is expressed in m².
Simply multiply the obtained length by the width to determine the required area.
EPDM membrane specifications
| Specifications |
Values |
| Thickness |
1.1 mm |
| Finish |
Smooth EPDM |
| Weight |
1.17 kg/m² |
| Large sheets |
Up to 930 m² without seams |
| Available lengths |
30.5 m and 61 m |
| Elongation |
>300% |
| Flexibility |
Down to -45°C |
| Temperature resistance |
Up to 250°C |
| UV resistance |
Yes |
| Ozone resistance |
Yes |
| Compatible with fish and plants |
Yes |
Premium underlay specifications
| Specifications |
Values |
| Weight |
400 g/m² |
| Width |
2 meters |
| Reinforcement |
Woven polypropylene mesh |
| Rot-proof |
Yes |
| Root-resistant |
Yes |
| Compatible |
EPDM, PVC and geomembranes |
Why install underlay beneath an EPDM pond liner?
The service life of an EPDM membrane depends as much on its quality as on ground preparation.
Even after thorough cleaning, stones, roots, gravel or invisible irregularities often remain.
Under the weight of several tonnes of water, these elements can create pressure points that may gradually damage the membrane.
The Aquitechnics Premium Underlay 400 g/m² acts as a genuine protective layer by:
✔ absorbing mechanical stresses
✔ distributing loads
✔ protecting the membrane against punctures
✔ improving installation stability
✔ considerably extending the pond's service life
Its polypropylene mesh reinforcement gives it excellent tear resistance while making installation easier.
Delivery
🚚 Free delivery in Belgium.
Shipping throughout Europe with automatic calculation of shipping costs based on the ordered dimensions.
Frequently asked questions
Is the underlay essential?
Yes. It provides long-lasting protection for the membrane against stones, roots and ground irregularities. Its cost is low compared with the price of an EPDM membrane, but its role is essential for preserving your pond for many years.
Why choose a 400 g/m² underlay?
Not all geotextiles provide the same level of protection. With its 400 g/m² weight and woven mesh reinforcement, the Aquitechnics model offers high-end protection suited to ponds, lakes and natural swimming pools.
How long does an EPDM membrane last?
Thanks to its exceptional resistance to UV rays, ozone, frost and high temperatures, a correctly installed EPDM membrane can retain all its performance for several decades.
Is this pack suitable for natural swimming pools?
Yes. It is perfectly suited to garden ponds, natural swimming pools, swimming ponds, waterfalls, streams and large bodies of water.
Aquitechnics quality
The Aquitechnics EPDM Pond Liner + Premium Underlay Pack combines two materials selected to provide reliable waterproofing, optimum mechanical protection and exceptional longevity.
The combination of a smooth 1.1 mm EPDM membrane and a reinforced Premium 400 g/m² underlay is currently one of the best solutions for creating a durable, reliable pond designed to stand the test of time.
