About Us
Specials Contact Us
  EXPERT ADVICE, POND AND WATER GARDEN SUPPLIES AND EQUIPMENT
Orders & Inquires: 678-404-8581 Tech Questions: 954-933-6662

2015 Items

 

Site Map| Weblog | Articles

water garden pond supplies, pond filters, pond pumps & UV sterilizers
water garden pond supplies, pond filters, pond pumps & UV sterilizers Submersible Pumps
water garden pond supplies, pond filters, pond pumps & UV sterilizers External Pumps
water garden pond supplies, pond filters, pond pumps & UV sterilizers Valves and Unions
water garden pond supplies, pond filters, pond pumps & UV sterilizers
water garden pond supplies, pond filters, pond pumps & UV sterilizers Biological Filters
water garden pond supplies, pond filters, pond pumps & UV sterilizers Submersible Filters
water garden pond supplies, pond filters, pond pumps & UV sterilizers External Pond Filters
water garden pond supplies, pond filters, pond pumps & UV sterilizers Filter Media
water garden pond supplies, pond filters, pond pumps & UV sterilizers
water garden pond supplies, pond filters, pond pumps & UV sterilizers Alpine
water garden pond supplies, pond filters, pond pumps & UV sterilizers Aqua Ultraviolet
water garden pond supplies, pond filters, pond pumps & UV sterilizers Cal Pump
water garden pond supplies, pond filters, pond pumps & UV sterilizers EasyPro
water garden pond supplies, pond filters, pond pumps & UV sterilizers ElektraPro/Fluidart
water garden pond supplies, pond filters, pond pumps & UV sterilizers Emperor Aquatics
water garden pond supplies, pond filters, pond pumps & UV sterilizers Hozelock - Vorton
water garden pond supplies, pond filters, pond pumps & UV sterilizers Laguna
water garden pond supplies, pond filters, pond pumps & UV sterilizers Little Giant
water garden pond supplies, pond filters, pond pumps & UV sterilizers Matala
water garden pond supplies, pond filters, pond pumps & UV sterilizers Oase
water garden pond supplies, pond filters, pond pumps & UV sterilizers Pondmaster
water garden pond supplies, pond filters, pond pumps & UV sterilizers Savio
water garden pond supplies, pond filters, pond pumps & UV sterilizers Tetra Pond
water garden pond supplies, pond filters, pond pumps & UV sterilizers Zapp Pure UV's
water garden pond supplies, pond filters, pond pumps & UV sterilizers Replacement Bulbs
water garden pond supplies, pond filters, pond pumps & UV sterilizers
water garden pond supplies, pond filters, pond pumps & UV sterilizers Aquarian
water garden pond supplies, pond filters, pond pumps & UV sterilizers Aquascape
water garden pond supplies, pond filters, pond pumps & UV sterilizers Blackwater Foods
water garden pond supplies, pond filters, pond pumps & UV sterilizers Blue Ridge
water garden pond supplies, pond filters, pond pumps & UV sterilizers Chengro
water garden pond supplies, pond filters, pond pumps & UV sterilizers Crystal Clear
water garden pond supplies, pond filters, pond pumps & UV sterilizers EasyPro
water garden pond supplies, pond filters, pond pumps & UV sterilizers Hikari Foods
water garden pond supplies, pond filters, pond pumps & UV sterilizers Jungle Pond
water garden pond supplies, pond filters, pond pumps & UV sterilizers Laguna
water garden pond supplies, pond filters, pond pumps & UV sterilizers Microbe Lift
water garden pond supplies, pond filters, pond pumps & UV sterilizers Nishikoi
water garden pond supplies, pond filters, pond pumps & UV sterilizers Pond Care
water garden pond supplies, pond filters, pond pumps & UV sterilizers Pondmaster
water garden pond supplies, pond filters, pond pumps & UV sterilizers Sho-Koi
water garden pond supplies, pond filters, pond pumps & UV sterilizers Tetra Pond
water garden pond supplies, pond filters, pond pumps & UV sterilizers Wardley
water garden pond supplies, pond filters, pond pumps & UV sterilizers Zeigler
water garden pond supplies, pond filters, pond pumps & UV sterilizers Fish Feeders
water garden pond supplies, pond filters, pond pumps & UV sterilizers
water garden pond supplies, pond filters, pond pumps & UV sterilizers Pond Liners
water garden pond supplies, pond filters, pond pumps & UV sterilizers Liner Tapes, Glues, Etc.
water garden pond supplies, pond filters, pond pumps & UV sterilizers
water garden pond supplies, pond filters, pond pumps & UV sterilizers De-Icer's
water garden pond supplies, pond filters, pond pumps & UV sterilizers Heaters
water garden pond supplies, pond filters, pond pumps & UV sterilizers Thermakoi Heaters
water garden pond supplies, pond filters, pond pumps & UV sterilizers
water garden pond supplies, pond filters, pond pumps & UV sterilizers Aquasieve Stainless
bird and hummingbird feeders
water garden pond supplies, pond filters, pond pumps & UV sterilizers Bird Feeders
water garden pond supplies, pond filters, pond pumps & UV sterilizers Bird Baths
water garden pond supplies, pond filters, pond pumps & UV sterilizers Hummingbird Feeders
water garden pond supplies, pond filters, pond pumps & UV sterilizersFountainswater garden pond supplies, pond filters, pond pumps & UV sterilizers
water garden pond supplies, pond filters, pond pumps & UV sterilizers Atlantic Skimmers
water garden pond supplies, pond filters, pond pumps & UV sterilizers Aquascape
water garden pond supplies, pond filters, pond pumps & UV sterilizers Filter Falls
water garden pond supplies, pond filters, pond pumps & UV sterilizers CalPump
water garden pond supplies, pond filters, pond pumps & UV sterilizers Crystal Pond
water garden pond supplies, pond filters, pond pumps & UV sterilizers Oase
water garden pond supplies, pond filters, pond pumps & UV sterilizers Pondmaster
water garden pond supplies, pond filters, pond pumps & UV sterilizers Savio
water garden pond supplies, pond filters, pond pumps & UV sterilizers
water garden lighting, pond light Lighting
water garden additives, algae fix, ph up, ph down
water garden lighting, pond light AquaScape
water garden lighting, pond light Clear Pond
water garden lighting, pond light Crystal Clear
water garden lighting, pond light GreenClean
water garden lighting, pond light Jungle
water garden lighting, pond light Kent/Nature Pond
water garden lighting, pond light Laguna
water garden lighting, pond light Microbe Lift
water garden lighting, pond light Misc Additives
water garden lighting, pond light Pond Care
water garden lighting, pond light Pond Clays
water garden lighting, pond light Tetra Pond
water garden lighting, pond light UltraClear
water garden lighting, pond light Plant Care
water garden pond supplies, pond filters, pond pumps & UV sterilizers
water garden lighting, pond light Medications
fish health, pond doctor Misc Resources
water garden pond supplies, pond filters, pond pumps & UV sterilizers
water garden lighting, pond light Pond Of The Month
water garden pond supplies, pond filters, pond pumps & UV sterilizers
water garden pond supplies, pond filters, pond pumps & UV sterilizers



Free Tips From
the Experts
Sign up for our FREE water gardening newsletter PondStuff! and learn from our pond experts with over 10 years experience!
Name:
Email:


 


     Water Pumps
  Choosing the Right Pump
 

Water Pumps

PROPER WATER PUMP SELECTION IS IMPORTANT!


Selecting a pump can be confusing, but it is critical that the proper pump is chosen to ensure longevity and trouble free performance.  Following are several things to keep in mind when selecting the right pump for your needs:

What is the volume of your Pond?
To calculate the volume of your pond multiply the length x the width x the depth x 7.481

Example:  Pond 6' x 9' x 2' x 7.481 = approximately 807 US Gallons

Your pump should be able to process all the water in your pond at least once every two hours at the minimum.

In the above example, your pond is 800 US gallons, you want at least a 400 GPH (gallons per hour) pump.

How much volume do you need for a Waterfall?
It takes approximately 36 gallons per minute to make a waterfall that is 1' wide x 1" deep (1" deep water is considered an average depth for residential applications.)  The first step in determining how much water you need is to multiply the width of the waterfall in feet x 36 = gallons per minute needed to make 1" thick water over your falls.

Example:  A 3" wide waterfall would need 108 gallons per minute to be 1" thick.
This determines how much volume you need

Next, determine how much head (or lift) there is from the surface of your pond to the top of the waterfall.  On a small simple waterfall the vertical lift is all you need, however on large applications you also need to factor in friction loss from the pipe as well as each fitting, to get the total head.
This determines head pressure

Something else to remember...  If you are having a waterfall, you might find it more pleasing to the eye to run another pump to your waterfall as the pump discharge from your filter may not be enough volume to be aesthetically pleasing.  Don't exceed the filter circulation to increase your waterfall appearance, as you will affect the overall efficiency of your filter.

Now that we know water volume needed, and the head height it is needed at, this makes selecting a pump much easier.  If you have a unique application, are using an external pump or just want help, please do not hesitate to call.  Improper pump application is the leading cause of pump failure - you should have the best pump for your application.  Knowing the application and selecting the correct pump for the job will increase the overall performance of the feature and decrease the frustration of the customer.

BUT, you must also take into consideration filter size.  Once you have selected a filter, check the circulation of that filter and match your pump to it.

Check the flow chart on the pump you are considering.  This should give you all the information you need on volts / amps, flow rates, and other valuable information when selecting a pump.

External pumps
Using an external pump raises several questions regarding proper pump selection.

Self Priming - A self priming pump can sit higher than the water level being pumped by a few feet (depending on the model) and will displace the air in the suction to prime itself.

Non Self Priming - These pumps must either sit below the water level being pumped, or must have a check valve installed at the end of the suction line to keep water in the system after being primed the first time.

All external pumps are designed to PUSH water, not PULL it.  This means that the pump should sit as close to the pond as possible!

Proper plumbing is important
Your pump can only perform as well as your plumbing system allows it to!  Very often pipe is used that is too small and then you can't figure out why a larger pump doesn't give you more water.  Always size your plumbing for the amount of water you are pumping, regardless of the outlet size of the pump!

Maximum water flow for a pipe size of:
1" = 25 GPM 2" = 90 GPM 6" = 700 GPM
1 1/4" = 45 GPM 3" = 225 GPM 8" = 1500 GPM
1 1/2" = GPM 4" = 350 GPM 10" = 2500 GPM

If your pump delivers more water than your pipe can handle, you will not get the pump's rated amount - you will get the PIPE's rated amount!

Example:  Frequently contractors use 3" flex pipe when installing a pump which has a 3" discharge but pumps 295 GPM at 5' of head.  Since 3" of pipe can handle a maximum of 225 GPM the pump does not deliver the amount of water it is capable of!  Always size your pipe for the amount of water being pumped.

Fittings can also reduce flow - 90 elbows should be avoided if at all possible (use two 45 elbows.)

Proper electrical supply is important
Inadequate power supply is one of the biggest contributors to reduced pump service life, poor performance and premature pump failure.  Low voltage caused by undersized wiring, having too many items running on the same line and not double checking the voltage / amp draw once the pump is operating are common mistakes that lead to problems.  All pumps need a certain amount of back pressure to operate correctly.  Often times a ball valve is needed on the outlet side of the pump to create the needed back pressure.  Without this back pressure the impeller will pump more water than the motor is rated for, creating high amp draw and excessive heat.  This will lead to shortened motor life and premature failure.  By closing the valve a small amount, back pressure is increased and the mor operates within its designed service factor.

Want more?  Click here for another great Pond Pump article...

BACK TO PUMP PRODUCTS

  MacArthur Water Gardens Home | Site Map

MacArthur Water Gardens 2015
PO Box 3628 | Alpharetta, GA 30023-3628
1-678-404-8581