Pond Liner Underlay
Do it right first time with PET SAFARI'S Pond Liner Underlay. Using this material will protect your pond liner from root & stone ingress & damage, will not rot & can significantly increase the lifespan of the liner. Available in a large number of pre-cut sizes to match the liner size. Don't settle for make do's & cast offs such as old carpet or carpet underlay which do not provide anything like the level of protection that underlay does over the many years of the ponds life.