Lagoons
Water Features
The most common synthetic membranes used as liners for lagoons, ponds and lakes are polyethylenes of high density (HDPE) or low density (LDPE), also Polypropylene. LDPE or Polypropylene are preferable if the design of the lagoon liner is an irregular shape and precise detailing is required. Where rapid installation is required, it is possible to prefabricate in a reinforced Keytec 642 liner.
Application
Both LDPE polyethylene and Polypropylene have the distinct advantages over HDPE because
of their flexibility. Whereas HDPE is a more rigid membrane with much less
flexibility, it has a slightly better puncture resistance and chemical
resistance over an LDPE membrane.
It is recommended that the soil conditions should be taken into consideration
when selecting a membrane for lining a lagoon, and that a geotextile is used to protect against sharp
and angular stones underneath and on top of the membrane, when back filling.
If you are unsure which to select, we will be pleased to offer our advice on
the grade to use with the membrane application.
Helpline advice is also available on waterfall detail, pipe entries and
fixing structures.
For design assistance and information advice on lagoon lining or on liners for any other type of water feature contact us.
