Another option, I bought a 20 x 100 roll of polyethelyne that is 10 mils thick for around $135. 10 mil is plenty thick enough to hold water but it may not be as durable as a greater thickness. From what I understand they all will last a long time covered with dirt and sealed off from sunlight.
Last edited by BillLake; 03/11/12 12:19 AM.
