i plan to dig an artificial pond (20Ft diameter) on my land for rain water harvesting. But was told by an old villager that even if i did, the water may percolate through the soil and rocks. instead of cementing the entire pond from inside - i wanted an alternative and came across - pond liners. would like to know if anyone has used pond liners, what their life expectancy is, costs - any other valuable info.
Thanks and regards