What size water pump do I need for 100 gal. cascading water feature?
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How big of a water pump is needed for approximately 100 gallons cascading water feature.
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The pump package should say or the pond supply store.
Look at the Gallons/minute rating as well as vertical pump height. Both of those numbers are maximums and many larger pumps will have an adjustment to scale back the volume of needed.
I would look at how tall your water feature is and how much volume you'll need spilling over and consider over-buying the pump size rather than choosing the smallest that will work.
Hi Rhonda, if you want to keep the pond running clean you want a higher pressure pump, I have a 160 gallon pond with an 1100/gph pump it lifts up about 4 feet and has a lengthy distance and it handles it well, makes good noise and it keeps the pond (with Koi) clear, also think about a filter system at the same time. I also use a snmall barley bale to reduce algae growth.
Hi Ronda, here's an article that may help you figure out the best size pump.
I hope it is helpful to you.
https://russellwatergardens.com/pages/waterfall-flow-rates