A water fountain can add a soothing ambience and design interest to your home or landscape. Make a small water fountain to place on a table top or a larger one to stand in your garden, using the same construction techniques. The main components of a simple water fountain are a reservoir, fountainhead and a submersible fountain pump. Pump sizes vary, based on the amount of pressure required to force the water to the desired height, but they must always be submerged before operating. Running a submersible fountain pump that is not covered with water could damage the motor.
Glue four half-round ceramic cabinet door knobs onto the base of the ceramic planter. Space the knobs at an equal distance; attach them with waterproof construction adhesive. Allow the adhesive to dry. This step is not necessary if you plan to place the water fountain on the ground as the soil can absorb the shape of the power cord. The electrical cord from the fountain pump will make the planter uneven if you place it on a table without some elevation.
Cut a rubber circle to fit over the planter's drainage opening. Cut a slit halfway across the rubber circle. Fit the slit around the fountain pump power cord, 4 inches from where it exits the pump. The cord should slide through the slit so you can make adjustments as needed.
Glue the rubber circle inside the planter, over the drainage opening using waterproof construction adhesive. Position the submersible pump over the rubber circle and adjust the cord to fit straight from the pump to the circle.
Move the pump to the side and seal the slit around the electrical cord and the outside rim of the rubber circle with silicone sealant. Allow the sealant to dry.
Reposition the pump in the centre of the planter. Fit the fountainhead onto the spout on the pump. Extend the fountainhead. Fill the planter with water to 1 inch below the rim.
Start the pump. Adjust the fountainhead as needed. Leave it just below the water line to create a bubbling fountain. Extend it beyond the water line to create a spray. Make sure that the water from the spray falls back in the planter.