fish pond question-hose slowing pump?

[srtn8]

Alright, I know some of you guys have outdoor ponds and figured I would ask you about something that has been bothering me with my pond pump.

I purchased a 1400 gph pump from lowes and it connected right up with a garden hose. I have a 9.5x6x2.5 pond and a 15 foot stream going into it. The pump takes water from the pond and pushes it into the top of the stream. My problem is that the water trickles out of the stream and into the pond. I would assume that a pump that size would be sufficient to make a nice flow. Do you think that if I were to cut the 25ft garden hose shorter that my flow would increase? I am concerned that may be the cause for lower flow. If I do cut it, will it make that much of a difference? Please advise and thank you in advance.

Nate

 

[oldreefer76]

shortening it will definitely help some, but I think your biggest problem is the inside diameter of the hose is to small for the pump size and is restricting your flow

 

[itZme]

How much is it lifting the water from the lowest point to the top of the stream? This combined with the I.D. of the hose (most are 5/8" now) and the length will all add to the head pressure.

Most submersibles I have seen that push 1400gph @0' only have roughly half their flow at 6' of head. I used the RC head loss calculator and showed 25' of horizontal and 5' of vertical using the Quiet one 6000 pump that is 1500gph at 0'. It showed the total of 9.75' of head loss and a total of 475gph delivered.

If I changed the horizontal run to 15' it increased the flow by 32gph to 507.

That's assuming 3/4" I.D. hose. If you can change the tubing to 1" PVC and the total length to bare minimum you will see a great increase in flow (calculator says 705gph).

HTH
-- Kevin

Here are the flow charts for the Quiet one pumps. Do you have a chart or a name brand for the pump you bought? If not, does it say a flow rate at certain head heights like 1400@0', 1200@2', 900@4' etc... ?

 

[Kreeger1]

Use 2 or 1 1/2 inch pipe from your feed pump. The garden hose is killing your flow big time.
My pond has a 3000 gph pump and I use 2 inch pvc pipe. It works great at 15 feet linear and 5 foot hight.

 

[ironheads]

Hey That looks like a really nice green monti....Do you have any frags of it available?........

 

[oldreefer76]

That is not a green Monti, it is s Green Sacrophylyia or green toadstool

 

[USAquatics]

For good flow "down a stream" it is advised to get a pump that will supply 100 GPH per inch of width of your waterfall. ie 22" wide = 2200 GPH @ X' of head. This will give you a steady stream over the falls.

Goodluck!!

 

[CleveYank]

My waterfalls that I built in my pond are fed by 3 of the Lowes 1600's.
And One Water Ace that pumps 3000 gallons.

The pond is not really big. But the rock wall behind it that I built is 60 inches high by 25 Feet long.
This allows me to have 5 areas of falling water which I can hear at the front sidewalk of my 190 foot deep property.

If you are making a stream.
I would think you would need as much in gallon output I have if not more to get an impact of any kind. IE a more natural looking flow rather than a half-hearted trickle.

Also.
I only run 1 of the pumps constant.
And the others are fired up when I want to sit out and enjoy the backyard hideaway. This of course allows for stagnation prevention while still not killing me with electrical overhead. Especially with 4 reef tanks humming away not too far away in the basement.

Based upon what I've seen and the ambitious nature of attempting to recreate a stream, I would think you may need to consider bumping up the power and number of pumps.

Just my 2 centavos.

Oh yeah, and I am using regular garden hose on the Ace and one of the lowes pumps without any flow constriction issues.