diy 2 external pump fish pond mega oxygen,aeration,circulation (external pump)
my back up pump made by formation es2500 gph and i think this is better than the submersible pump coz the submersible pump spittle oil and your water ...

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Sequence 4200SEQ12 External Pump
List Price: $352.00
Price: $298.93
You Save: $53.07 (15%)
# 3 Year Promise
# 160 Max Watts
# 12' Max Guv'nor
# 1/8 HP
Sunterra 202000 Pond Pump 2000 GPH, Black
List Price: $144.00
# Has a 25 foot power rope and a two year limited warranty
# With no beating about the bush dive pumps are more powerful and are for use in dirty water applications such as open-air water gardens
# Pumps 2000 gallons of ditch-water per hour with a maximum lift of 23 feet
# Make known water in a pond to help prevent breeding of unwanted insects while oxygenating it for plants and fish
# Express Drive pumps are energy efficient, water cooled and us no oil
Danner 02663 Proline HY Drive 1600GPH Waterfall Pump
List Price: $229.99
# Easy on the wattage, high enough to create a dynamic, attractive waterfall or drive a medium skimmer
# Cycles 1, 600 gallons per hour, can be positioned vertically or horizontally, is equally at on underwater as a submersible pump or as an inline
# Specifically for use in larger pond installations; dash efficient, low maintenance pumping source
# Hy-drive draw up combines the benefits of magnetic and direct drive technologies to extricate an extremely quiet
# Disclose quiet operation, oil free and fish safe, operates continuously, adapts to 1.5 inch threaded fittings, includes 20 foot power string
Savio Water Master Solids Handling Pond Pump - 2050 GPH, Model# WM2050
List Price: $285.00
# Amps: 3.2-3.0
# Upper limit head: 16ft.
# Gallons per hour: 2050
# Maximal flow: 2050 GPH
# Watts: 240-350
Little Giant Pump 566407 4300 GPH Pond Pump
List Price: $276.00
Price: $166.32
You Save: $109.68 (40%)
# In perfect accord Dual-Discharge Design Allows For Operation Of Two Water Features Simultaneously
# Resilient Direct-Drive Pump Produces Greater Starting Torque And Abundance Pressure Than Comparable Magnet
# 5/8 Horse Power
# 115 Vac 60 Hz 16 Foot String
# 4280 Gallons Per Hour At 1 Foot Of Incite Max. Of 30 Foot
Little Giant OPWG-46 46 GPM Exterior Pond Pump with 8' Power Cord (566021)
List Price: $448.10
Price: $322.87
You Save: $125.23 (28%)
# Little Mammoth
# Pond Pumps
# OPWG-46
Pondmaster PMK1250 Pond Filter with 250gph Pump and Bonus Fountain Head
List Price: $140.00
Price: $81.95
You Save: $58.05 (41%)
# Provides an handsome fountain display in the pond
# Filtering media acts as operative biological and mechanical filters
# This Pondmaster Filtration System with Pump Origin includes filter, bell style and adjustable fountain heads
# In conjunction with an additonal external biological percolate system in ponds with koi or heavier fish population
# Includes a charismatic drive 250 gallon per hour (gph) pump and a length of tubing to fit pump and filter
# The system can be in use accustomed to as the sole source of bio-mechanical filtration
# Ponds up to 500 gallons with lambaste fish population
my back up pump made by formation es2500 gph and i think this is better than the submersible pump coz the submersible pump spittle oil and your water ...