The most of the sites promote the rubber liner mainly only because most of them only deal in pond liner. If we see from the vendor's point of view, rubber liners are comparatively more profitable because of the accessories required with these liners also have to collect. For an instance we can say that to construct a pond liner you have no option other than buying the accessories like drains, special skimmers and bio filter and variety of sump pumps namely, short lived, energy sucking and inefficient. You will find the rare pond contractors that will tell you about the weaknesses and the complete truth of sump pumps. They will not tell about the problem which usually occurs after the installation. The main problem occur in the rubber ponds found because of the attack of the ground squirrel, chipmunks, rats, gophers, mice, and the claws as they damage the liner in order to get out of them after entering accidently or with their own purpose to enter that. The main reason of the animal burrow is the loose rocks at the sides of the waterfall and rubber pond. Once these animals enter the liner they build their nests and increase their families which automatically leads to huge damage as the more animals which completely chew and make the holes in the liner. Over past many years, the pond contractors are replacing the leaky ponds and waterfalls with concrete. Usually liner ponds have a guarantee of around thirty years but they never mention the other problems occur in this. Many Toronto landscaping contractors exploit the customer by saying that concrete is expensive as compared to the rubber ponds and it will crack in no time. It is true that it will be damaged in a small time if it is not build properly with 3500psi concrete. After pouring if you will not seal the concrete it is true that the alkali present in that will poison the whole water. It is true that construction cost of concrete is more as compared to that of a liner buy it stay for long time.