When you have a backyard or garden pond, you have to have a water pump installed in it so that the water continues to trickle. It makes for a more beautiful setting in your pond and ensures that the water will never dry out. You can install a water pump quite easily in one short weekend.
First, consider how large a pond you have. A good idea is to circulate the entire contents of your small garden pond at least once an hour. When you have figured out the size of your pond, then you will be able to choose the right size pump you will need for it.
Another factor to keep in mind is where the power source for the pond is located. Most small pond pumps run on 120 vac from a household outlet. While a 15 to 20 amp circuit should be fine, be sure to check on the amperage rating on your new pump first and foremost.
Be aware that you are mixing water with electricity, which is a deadly combination. If you have any fish in your pond, you will have to take extra caution not to electrocute them. This of course goes for yourself and any family members who help you with the pump installation as well. The pond pump must be connected to a Ground Fault Circuit Interrupter, or GFCI. The GFCI comes in two types: Receptacle or outlet. Check with your local building codes to ensure that you select the right type.
While you are conducting the installation of your water pump, you may want to bury the special underground feeder cable, which is called "UF Romex." This electrical conductor is made specifically for outdoor usage and in-ground burial. You should dig a trench of at least one foot deep and keep it filled with clean soil. You will then need to install and outdoor sealed outlet box near the plug-in area for your pump, which you can easily hide among vegetation or rocks. You can even paint it a color that will camouflage in the landscape.
After the cable and outdoor-approved box are in, you can install the circuit breaker and outlet for the water pump. Keep in mind that some local codes will only require the "outlet only" to hold the GFCI, while others may require the circuit breaker holding it. Do not install both, because this will be ineffective. Of course, and as with any new gear, carefully follow the instructions that come with your GFCI package. Also, test out the electricity after the installation to ensure that it works.
Read all the instructions included with your water pump. Plug it into the outlet to make sure it will properly run. Once you see it operating, you can install it into the pond. Connect the wiring per the instructions. You can place the pump wherever you like in the pond, but you should hide it with a small formation of rocks. This will make for more attractive scenery.
Do not place the pump at the bottom of the pond, as that will clog the screen on the inlet side, which will prevent the water from flowing. Put the pump on a small pedestal and place some rocks around to support it.
Once you are finished, you can fully enjoy your new water garden!