Underlay Product by Online Waterproofing Shop

installing-Geo-Synthetic-Underlayment

Geo Synthetic Underlay is Positioned underneath your pond liner, underlayment helps protect your liner from punctures and damage from the rough ground below.

170 GSM Underlay Ideal for standard pond installation where basic protection is required.
270 GSM Underlay Ideal for specific jobs where the pond liner must be protected from rougher and sharper surfaces.