Adjusting water flow

kashka_kat(z4 WI)April 22, 2014

Instead of an actual waterfall, I have tubing that goes to the filter behind a rock wall, then a 2" pipe comes from the filter through the rock wall and from there the water comes out via 2" pipe back into the pond.

Is there anyway I can modify the flow of water so its not gushing out so intensely? Im considering splitting the outflow into 2 or 3 spouts but it's not my first choice because that would involve some reconstruction. Is there any way to shape the spout to soften the sound? The trick is to soften it, but without slowing the flow much - don't want my filter to back up.

Thanks!

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PKponder TX(7b)

We used to divert ours with a stone placed in the flow. That allowed the flow to cascade down the rocks instead of shooting into the pond.

    Bookmark   April 23, 2014 at 8:44AM
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mgeca

If you install a ball valve after the pump you can adjust the flow to your taste and always have the option to change the flow at any time. A little work but easier than always fiddling with rocks, etc.

    Bookmark   April 23, 2014 at 11:41AM
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kashka_kat(z4 WI)

Ball valve - hmmm that would help in other ways too (ie would be good to slow it slightly through the filter set up) Does it harm the pump motor in any way to slow it - would not be a drastic change.

    Bookmark   April 23, 2014 at 11:52AM
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mgeca

Never restrict the flow into the pump, but regulating the flow after the pump is fine.

If you can afford it, buy the best ball valve that you can find. Cheap ones turn balky trying to turn the handle. I found expensive ones always work smoothly and you can adjust the tension.

    Bookmark   April 23, 2014 at 12:23PM
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myfrozenlittlepond(3)

Could you modify what the stream of water hits when it leaves the pipe? Like a stack of rocks, or a series of levels that allow the water to trickle down several paths before it gets to water level?

    Bookmark   April 23, 2014 at 8:15PM
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mgeca

That's the design or creative side of things. Two things come to mind based on some problems I had. First, every time you increase or decrease the flow with the valve, you will change the look and sound of the stream of water, so finding a balance between flow and landscape will take experimentation. Second, think about adding a fitting of some sort at the end of your pipe to help create what it is that you are looking for. Add something to flatten the water flow out of the pipe. Or something perforated to create little jets of water.

    Bookmark   April 23, 2014 at 10:25PM
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