What size pump? or pumps?

[Frevis]

Would anyone have an idea of what size and type of pumps would be needed for a pond project like this one here ?

 

[Beercan31]

If they are pumping 100' from the bottom all the way to the top, they are running multiple pumps the one for the upper waterfall is BIG, at least 5-600+ gpm. Piped w/ 4" or better. At least 1 or 2 pumps for the pond it self maybe 1-200 gpm. I know of pumps that can do the whole job but they are very expensive to purchase and run, they run on 480 volts or more. I can't see that happening there.

 

[GBBUDD]

my guess is around 18000 gph its considerably more than my 12000. i maybe mistaken but i thought they said they used dual 5 to 9000 pumps

 

[Beercan31]

this one is 19020 gph 3hp 230 3 phase. close to 2g's

 

[GBBUDD]

Dragon?

 

[Frevis]

What would be the cheapest way to go and run around the clock ?

 

[Frevis]

I need to know how much this will be per month to see if its something that I want to be paying out every month to have.

 

[Frevis]

I just watched the video again and he said it had two external pumps and that pond was self sustaining 4000 gallons of water.

 

[GBBUDD]

Listen again there's no way those falls are only 4k.

I'm in CT with a 12 k external a dozen led lights and off and on air pump it's runninge 200 a month easy

 

[GBBUDD]

When you get above 10 k it's often better to spit the use to two pumps that way if one dies your not up the creek without a paddle.

not to mention the smaller pumps use less energy. One 6 k pumps will use less than half what a 12 k will

 

[combatwombat]

The size of the pump(s) don’t dictate how much water comes over your waterfall. You have to account for head loss as well. Which can be significant if you’re pumping a long distance and/or to great height.

I’d also guess that there’s about 10-12,000 GPH going over those falls plus whatever they’re doing for other circulation. At least 1,000 GPH per jet. Let’s say 4, so another 4k for a total of 16,000 GPH.

Couldn’t tell you what size pump they’re running since that all depends on head pressure, but you usually shoot for the middle of a pump’s curve for best efficiency.

So 16k GPH out the pipes and in the middle of the curve would put you at around 25-35k GPH pumps. Let’s say 30k, so 2 pumps each rated for 15k.

Go look at the energy performance charts on various 12-15k GPH pumps. The very best are probably going to use 5-800 watts continuous, but they can only do very low-head applications.

So plan for more. You can convert watts to kilowatt hours and multiply by 24 to see how many kWh you’ll use in a day. Multiply by 2 since you have 2 pumps. Multiply by 30 for kWh per month and multiply that by the price you pay per kWh for electricity.

There’s your monthly cost. Probably a lot!

 

[Beercan31]

SAER Heavy Duty Centrifugal Water Pump — 19020 GPH, 3HP, 230V – 3P, 6BP7/109

 

[Frevis]

The size of the pump(s) don’t dictate how much water comes over your waterfall. You have to account for head loss as well. Which can be significant if you’re pumping a long distance and/or to great height.

I’d also guess that there’s about 10-12,000 GPH going over those falls plus whatever they’re doing for other circulation. At least 1,000 GPH per jet. Let’s say 4, so another 4k for a total of 16,000 GPH.

Couldn’t tell you what size pump they’re running since that all depends on head pressure, but you usually shoot for the middle of a pump’s curve for best efficiency.

So 16k GPH out the pipes and in the middle of the curve would put you at around 25-35k GPH pumps. Let’s say 30k, so 2 pumps each rated for 15k.

Go look at the energy performance charts on various 12-15k GPH pumps. The very best are probably going to use 5-800 watts continuous, but they can only do very low-head applications.

So plan for more. You can convert watts to kilowatt hours and multiply by 24 to see how many kWh you’ll use in a day. Multiply by 2 since you have 2 pumps. Multiply by 30 for kWh per month and multiply that by the price you pay per kWh for electricity.

There’s your monthly cost. Probably a lot!

Would it be better to run four 6k pumps then ?

 

[combatwombat]

Maybe? What does better mean to you? From an electric cost standpoint, it probably won’t make a lot of difference unless you’re working with a really high static head.

 

[GBBUDD]

ONCE i finaly finish tinkering with the pond, mainly the landscape around the pond. The 200 bucks a month it costs me to run the pumps is a night out once or twice a month that we no longer do because of the home cation.