What are the disadvantages of Everything Ponds Premium Liners in comparison to EPDM Liners?

While RPE liners are lighter and stronger than EPDM, they are a little less pliable. This is usually not a significant issue for most ponds, as RPE liners can still be easily folded and pleated. However, for ponds with many shelves, corners, and bends to fold around, EPDM rubber may be easier to work with due to its greater flexibility. On the other hand, EPDM rubber is much heavier, which can make it harder to move around. However, the folds in EPDM rubber liners tend to be more 'weighted', which can help them lie flatter.