![]() ![]() This will keep the pump from resting in the layer of sediment that will likely form on the bottom of the pond. It is best to lay the pump on its side and raise it up a few inches off the bottom of the pond. Place the pump in the pond and begin running the tubing that will carry water from the pump to the top of the waterfall. If you are building your pond and waterfall at the same time, one larger piece of liner may be used for both. Please consult an Aquatic & Garden Decor staff member to confirm your calculations before the liner is cut.Ĭoncrete block wall size: 4′ width, 2′ depth, 2′ heightĭimension of rubber liner needed: 10′ x 6′ Height = from the top of the foundation to the top of the block wall.įor the first measurement of the liner, add the width plus two times the height plus two feet (one-foot overlap on each side).įor the second measurement, add the height plus the depth plus two feet (one-foot overlap in the back and one foot to hang down in the pond). Width = side to side, from outer block edge to outer block edge.ĭepth = from the front of the waterfall to the back of the block wall. To determine the size of the piece of liner needed for your waterfall, consider the height, width and depth of your planned waterfall. Use pond underlayment under the rubber liner to protect it from any sharp edges on the concrete slab and block wall. It is important to line the whole area with 45 mil rubber pond liner to prevent any water loss from behind the waterfall. The height of the back of this wall should match the height of the waterfall you plan to build, and the sides step down towards the pond. Construct a WallĪfter the concrete slab has dried (approximately 24 hours), use concrete block to construct a three-sided or curved wall along the sides and back edge of the concrete slab. Also, the top surface of the concrete should be about 2″ higher than the pond edge which will keep the weight of the waterfall rocks off the edge of the pond. This will help the waterfall remain level and prevent portions of it from settling unevenly. The concrete slab should be approximately 6″ thick and the surface should be level. If your pond is already in place, do not pour the concrete on top of the liner at the edge of your pond. For smaller waterfalls a large patio stone may be used. Next to your pond, pour a concrete slab equal in size to the length and width of the waterfall you plan to build. Before building your waterfall, you will need a solid foundation to support the weight of the concrete block and water fall rocks. ![]()
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