Selecting the Heart for Your Pond
If your pond is going to be anything other than a natural or bog type water feature, you are going to need a pond pump. The one thing you want to keep in mind when selecting your pump is to always go up in size. Actually.. you should probably double the size (gallons/hour) that you have calculated.
For years the general rule of thumb for a pump is half a ponds volume every hour. Some like to turn the whole entire pond volume over every hour. So with this rule.. if you have a pond that is 1,000 gallons, then you would select a pump that is 500 gallons per hour. But, what many do not realize is that you will most likely need a pump that is 1,000 gallons or more. This is because of friction loss that happens as water flows through piping, bends, filters, etc.
As stated in other articles quality of the pump is very important for a water feature. It will also become apparent in electrical costs. A cheap pond pump will draw more amps while moving the same amount of water as a more expensive pump. This is because the pumps are made with different bearings, or electrical motor windings.
One of the best methods of pond pump installation design is to buy one to run the bio filter, and at least one more to run any waterfalls, fountains, or bubblers. When water flows through a tee-fitting as it would if you had one pump running both water pressure and flow drops by at least half in each inch.
While a pond pump can be very expensive.. it should not be overlooked in your design budget. For more detailed info you can also checkout our pond pump information page.
Hope this helps,