Waterfalls in ponds are attractive to us and the birds, plus you can enjoy the relaxing flow of the water.
To construct a water fall it is necessary to make a raised area from which the waterfall can flow downwards. To get a base you can use the the soil previously excavated to create the hole for the pond. It is also necessary to fit a pump and these come in various sizes. A good retailer will advise on the size of the pump needed for your pond and an electrician is required to undertake the electrical work safely.
There are pre formed water fall kits which makes construction easier. There are all different types and shapes; in the image left is a slate, preformed waterfall which comprised of three separate pieces placed together to form the waterfall. Preformed waterfalls are quite heavy and the key is to ensure the waterfall is bedded in and level. The best way to get the waterfall level is by using sand to pack the sides and underneath, which allows fine adjustments and a spirit level to check. It takes time to level of the sides of the water fall to make the pre formed kit sit comfortably. Pre formed are good in that they create an instant water fall all in one go.
Alternatively, having dug out the waterfall shape as part of the construction you can build yourself using Butyl liner, rocks and slabs, as in the image right. This way you can make a waterfall out of stone local to your area so it looks natural and to the size and shape you design. In both instances place the pipe leading to the pump first and build the water fall around it.