Water Feature Liner. CLIENT BRIEF: I have had a water feature installed in my new Remuera home 12 months ago. Over this period of time the concrete pond/reservior does not hold water. This stops the feature having water cascade down it, as it should. PROBLEM SOLVED: Installation of a 12mm water feature liner fabricated on site to fit the exact dimensions of the pond, stainless steel fixing screws were countersunk and reinstated to achieve a smooth clean surface. Pond, pool water feature liners custom built to suit.