DIY filter waterfall outlets


koiguy1969

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I am sure some of you have thought of this but those who hadnt and are trying to figure out a waterfall setup...i made this one for my basement pond, but you could easily make and use an end like this for your waterfall(s) outdoors by tucking one or more inbetween some flat stones and sealing with some waterfall foam. and would work well for multiple spill points in the falls. much better than water coming out like the end of your garden hose. you can see theres good aeration, and the water sheet is 8" wide where it hits the waters surface. this is a 2" pipe heated flattened out at one end and shaped so the slot is nice and even. i know i could get atleast 12" on a 3" pipe. i have a tetrapond 1000 gph pump running this system. a couple ball valves to control water flow out each spill point.
 

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Dang great idea koiguy. I am in the process of adding different level spillways to my waterfall and was wondering how to do this without just having a pipe gush out water like you said. What did you use to heat the 2" pipe enough to stretch it like that? Man you saved me alot of brain busting.....thanks!
 

koiguy1969

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i warmed it in front of my torpedo heater.. but a heat gun would do nicely... not neccessary but i cut an inside form from 1/2" polyethelene plastic to slide in the end to uniformly contour the spout, get it where you like and dip it in cold water.
 

DrDave

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Great idea!
PVC can be formed in boiling water. If you put the end in boiling water until you are ready to form it, then use a heat gun to localize the heat at the end while flattening it, that may make it easier to get uniform results.
 
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Great, a heat gun or boiling water helps in forming the PVC pipe whatever shape I need it to be. I will try this since I am doing multiple spill points along my waterfall. Thnxs guys
 
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so this is 2 inch pipe come out of the 2 inch drain??
i guess i have to use 2 inch i was going to reduce from 2 inch drian
to 1&1/2 inch water fall pipe think that would work also?
 
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I Love this!!! I had an idea for a DIY weir, but this might be much better, and easier. It might be even easier using The poly styrene pipe or the thinner PVC used just for drains. They have fittings that convert Schedule 40. to it so you can connect it to your plumbing. Man never thought of, jut flatening it. I was going to use a TEE and split it, then heat it to get that weir lip look.
 

koiguy1969

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i put 2200 gals thru one for a couple minutes to test it ..but if you go any higher flow than that you may want to move up to a 3" pipe and adapter from your output to the falls.
 
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koiguy1969 said:
i put 2200 gals thru one for a couple minutes to test it ..but if you go any higher flow than that you may want to move up to a 3" pipe and adapter from your output to the falls.

I was actually thinking of using 6" and reducers down to my pipe feed size. I will mess with it a little when I get to that point. I had a few other ideas for DIY waterfalls and weirs.
 

koiguy1969

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yep... i already posted this long time ago. i think you could make a pretty good skimmer out of these also for use with a submersable pump... and they would hve to be removed for the winter...at least here in Michigan with our winters.
 
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sissy

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great idea but could I use black abs pipe so it would not show as much as the white .I used some of the black I guess it is used as vent pipe or sewer pipe .I'm not sure it would melt as easy but I think it would since it is plastic too .
 

sissy

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I have some black abs and will try it instead of the pvc pipe and will let everyone know .I'm sure it will work the same way .I love the idea of making the flow wider instead of just that full stream as it will add more oxygen to the pond water this way .Thank you for the idea
 
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sissy

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It worked great and hides a little better .I want to get a bigger one and do it a gain to make the water coming out even wider .It smells worse than the pvc so do it out side and takes a little longer to heat up and you have to be really careful when it gets hot it stays hot longer than the pvc .I have to make a new one ,I have a habit when people say make me one I gave mine to my neighbor Tammy because I wanted a larger pipe anyway .I think I may go with the 8 inch abs this time and stretch it sideways more when I start to flatten it .Koiguys idea was great
 

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