Pond / Dam Liners

Telephone: 03 546 6809

Email: sales@tmcovers.co.nz

Process from excavation through to install & finally, after a couple of years - looking stunning!

Made in New Zealand - Our liners are tough & easy to install


The majority of our liners are made using an Australian textile, Aquamark®.  Aquamark® is a scrim reinforced polypropylene coated fabric, specifically designed for a wide range of water and effluent containment and storage applications. Aquamark® is light but strong, as opposed to the much heavier traditional pond lining material.  This reduction in weight makes it a much easier & faster liner to install.  In most cases, the entire liner is made by us & shipped to site - this eliminates weather related stoppages & potential contamination into the welding joins.



Pond Liner Construction
Pond Liner Construction
  • 20 year warranty against UV degradation
  • 400gsm or 480gsm Polyproylene - light weight enabling large liners or liner sections to be prefabricated for speedy installation
  • BPA Free
  • AS/NZS 4020 approved for contact with potable water - ideal for grey, black and potable water storage applications.  One liner material suits most applications
  • Environmentally friendly Polypropylene - both the manufacture and eventual disposal of the 100% recyclable material ensures minimal impact on the environment with no chlorine or heavy metals in the production of the product
  • Tested to 39m waterhead (400kPa)
  • Aquamark® +480 complies with 3.6.1 of AS2304- 2011 (water storage tanks for fire protection systems)
  • High strength material with durable layered technology supported by high strength woven base material
  • Watertight joints are achieved utilizing double weld heat welding
  • Conforms to the seepage requirement of less than 0.1mm/1cbm per day
  • Generally, any liquid with a pH in the range of 6-8 is able to be in contact with Aquamark. pH of 4 & less is not suitable. Between pH 4 & pH 6, you will need to seek advice from us as to suitability.  If the storage requirement is above pH 10, Aquamark is not suitable. Between pH 8 & pH 10, you will need to seek our advice.
  • Aquamark® 400gsm (0.5mm thickness)   or   Aquamark® 480gsm (0.65mm thickness)
  • For a full list of chemical resistance, please email us.



Pond Liner Tasman
Pond Liner Tasman
  • Agricultural - dam liners, effluent and wash down containment ponds, tank liners, channel lining
  • Viticulture - contain grape marc & other waste
  • Horticulture - dams & ponds for water supply
  • Industrial - bunding liners, effluent ponds, water storage and containment
  • Building and construction - storm water containment liners, water storage, tank liners
  • Aquaculture - fish and crustacean breeding ponds, bio fuel production ponds
  • Lifestylers - store water - less stress in summer for stock water & firefighting
  • Forestry - fire fighting water storage
  • Biogas Storage




So long as there are no sharp objects (rocks, roots, etc.) in contact with the liner, a Geomembrane underlay should not be required.  We are happy to send a sample if you would like us to.


If you do need a thicker textile for your liner, we have access to other textiles which are thicker.  Please email us to enquire.


In addition to Aquamark, we are able to source a wide range of alternative lining material through our supplier network.

This has enabled us to line fuel farms, storm water containment and water detention systems, and effluent ponds that required a thicker material to meet local Council requirements.


Please do not hesitate to contact us and we can source a material that will suit your project.

Measuring your liner

Measure following the red line in the diagram below

  • Trench - the bigger the dam, the bigger & wider the trench will need to be - speak with your contractor
  • Slope of walls - usually around the 1:3 ratio - the larger the dam, the longer the walls - speak with your contractor
  • We are liner experts so make sure you seek advice from a civil contractor first - they are the earthworks & design experts