Finding the correct size pond pump is essential to support fish and plant life, reduce the amount of algae, maintain the health of your pond and also provide good circulation for fountains and waterfalls.
One of the most expensive pieces of equipment you will ever purchase for your water garden pond is the pump. They are necessary to generate attractive waterfalls and pond fountains. Therefore, it is essential to purchase the perfect size that has the correct flow in gallons per hour, GPH, and perform regular care and maintenance to keep it in good working order.
Determining General Pond Volume
Start by measuring your pond to determine its volume using a tape measure. Write down the exact length, width and depth of your pond. If your pond is an odd shape, simply record the measurements of the parts where it is longest, deepest and widest.
If you will not be installing any type of waterfall or fountain in your water garden pond, you can purchase a pump that is suitable for the pond’s overall volume. For example, if your pond has a volume of 500 gallons, then you will need a 500 gallon per hour pond pump. Pond pumps are essential for every pond, even those without fountains or waterfalls, as they support the health of your fish and plant life and also keep pond algae under control. No matter what type of water garden pond you have, always buy the correct pond pump.
Calculating for Pond Pumps With a Waterfall
If your pond has either a waterfall or a fountain, multiply the water volume by 1.5 to get the total gallons per hour required for the correct pump. In order to adequately circulate waterfalls and fountains, pond pumps need to provide at least 50% more flow in gallons per hour than the actual water volume. For example, if your pond is 500 gallons, then you will need a 750 gallon per hour pump. If your pond is especially large or has more than one fountain or waterfall or even a combination of the two, you will need an even bigger pump. For each extra water feature, add an additional .5 of the total water volume.
To ensure good water pressure from your waterfall or fountain, you will need to work out the maximum lift or head of the waterfall. Measure the exact height of your waterfall from the ground up in inches. Check the specifications of your chosen pump either online or in the accompanying literature to ensure it will provide adequate lift. Ensure that the maximum lift or head provided by the pump is higher than the height of your fountains and waterfalls.
If you would like a stronger flow from your pond fountains or waterfalls, purchase a pump that is just over 1.5 times the total volume of your pond.
Check Hoses for Pond Pumps for Strength
Before installing your pump, examine the length and weight of the hoses provided to ensure that they fit easily without being stretched and that they are strong enough. If the hoses do not stretch to your water features easily, you will need to purchase additional hoses to fit an extension. Make sure you connect the hoses to one another properly using sealant to prevent leaks. Remember to check the length of the electric cord provided to ensure that it can reach to a nearby socket.
Read Pond Pumps Warranties and Return Policies
Always read the warranty on any pond pump you are considering before making your purchase. Pumps can break and will need replacing from time to time. A longer warranty will save you money as well as giving you added peace of mind.
Maintain your pond by conducting a thorough examination of it once a year and cleaning all the supplies such as pond pumps and filters. By keeping your backyard water garden in good health, you will extend the life of all your supplies and improve the overall performance of your pond pump.
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