One of the MOST important steps in constructing a water garden pool is the choice of a lining material for the water garden. Your beauty and personal satisfaction will come from years of water gardening, without problems from your AquaTough Pond Liner with J-Tear Protection. J-Tear Protection is revolutionary advancement not found in other epdm liners. This means that when cutting for sizing or water features, unlike other competitor liners, the cut will not tear in a long line but, if tears, will tear in the direction of the cut for a short distance and then it will change direction and attempt to curve back on itself. A lot said, but it takes the worry out of the liner to continue to tear after cutting to size or around a water feature, etc. and leaking. Enjoy your water garden pool not worrying about problems from your choice of lining material.