Concrete fountains can be a decorative presence in your garden or yard. You can make your own concrete water fountains from existing decorative or gardening materials. Add the fountain components to the basin of a concrete bird bath or create a separate water fountain from a concrete planter. Fountain components are available from online retailers as well as from many local garden supply centers. Enhance the concrete planter with mosaic tiles, concrete stain or paint to embellish your fountain design.
Select a concrete planter that's at least 8 inches in diameter for the basin of your fountain. Seal any cracks in the concrete with cement filler. Allow the filler to dry.
Paint the inside of the concrete planter with exterior latex primer and paint to seal the concrete. You can also paint the exterior of the planter if you like. Allow the finish to dry before taking the next step.
Cut a rubber disc to cover any drainage openings in the concrete planter. Glue the rubber over the drainage holes with silicone sealant. If the drainage openings are large enough to fit the electrical cord from a fountain pump, insert the cord through an opening and seal a rubber disc around it. Cover the area around the cord well with silicone. Let the silicone dry according to the manufacturer's directions.
Place the submersible fountain pump inside the planter basin. Drape the electrical cord over the side of the planter. Paint it the same color as the interior of the planter if you would like to make it less noticeable.
Attach the fountainhead to the pump spout. Fill the planter basin with water to within 1 inch of the rim. Extend the fountainhead to just below the water line. Plug in the pump to start the fountain.
Adjust the fountainhead as needed to ensure that the water stays inside the concrete planter basin.