New pond filtration

ididntdoit99

ididntdoit99
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OKay... so As most of you know, i made my pond much larger, almost 3x larger than it was.

So I'm working with what i have at the moment for filtration and pumps. I had a 300 gph pump when i first built it, then the second year i went larger and bought a 950 gph pump, but now my pond is around 3500 gallons, and i dont have enough power, but its going to be a little while before i can buy myself another pump. I still need to buy a nice fence to put around it to keep critters out, Plus its kind of fun seeing what i can build, and see if i make make the movement and flow perfect and still keep clear water with undersized pumps.

so.. here is what i have thus far. my sketch isnt great, but gives you an idea.

pond.JPG

okay, so i have a 9x15 pond, and in the one corner i dug a pit for a skimmer. being as how these pumps are undersized and i have such a large surface area, i put both pumps in the skimmer, and they still didnt seem to pull a whole lot, but they are working.

So the bigger pump (950 gph) is split off, there was a bigger 1" tube coming out the top that is supposed to be just used for a fountain head, i ran a 1 inch pipe all the way across to the other side of the pond, where i took a piece of 1 inch pvc pipe and capped the end, and drilled 1/4 inch holes every few inches across the pipe (numbered 1 in my picture) , this sits on the rock shelf near the surface of the water, and pushes a stream of water across the pond, helping to push all the leaves towards the end of the pond where the skimmer is. then the smaller tube off that pump goes to the boifilter i made from a galvanized tub that sits in the middle of the water, i also turned that toward the skimmer, so that the water pouring back into teh pond fro it is directed toward the skimmer.

I may need to change that, the boifilter is a good foot out of the water, and the water coming back into the pond "drops" more than it "pushes" it seems leaves coming from the end of the pond pushed by the current from that length of pvc kind of get caught up around the boi filter, the water "dropping" from there messes with the current.

Then lastly, I was worried that all of my water movement was near the surface of the water, and the water 4 foot down would not circulate as well and the deep parts would get cloudy. (I witnessed this last year, it could have just been the shape of my pond, but i had nice clear water on top, and cloudy down below until i dropped one of the pumps deeper into the pond.) So being as both of my pumps are in the skimmer, i then took the smaller pump, and coonected it to a 4 foot long piece of pvc (1/2 inch, not a big one incher) and i also drilled a bunch of holes in that and layed it in the deepest part of the pond. so now the pump sucks water into the skimmer and pumps it down to the bottom, and hopefully stirs water up from there. (number 2 in the picture)

anyway.. i thought it was pretty cool, im excited to see how well it works. I will try to get some actual pictures of it this weekend. but i thought it might be something someone wanted to try, as far as the length of pvc with the holes drilled in it... gives a nice current all across the length of the pond. to help push stuff toward the skimmer.
 

ididntdoit99

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I also do have a small airpump, i was thinking about running that into the length of pvc sitting on the bottom of the pond, a nice air and water mixture coming from that would sir things up at the bottom even more, but i also think all the bubles rising would mess with leaves headed towards the skimmmer, so i havent tried hooking it up yet, I'll wait a few weeks to see how this setup works.
 
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Your 950gph pump might only be pusing 500 gph or so due to head pressure loss. Drilling the holes to make a spray bar greatly decrease flow due to the added head pressure plus just the friction loss of running pipe.

I would look at getting a bigger pump if you don't get the results you are looking for. Getting something that would push around 2000 gph of actual flow would probably eliminate the need for the spray bar. My pump does 3000-4000 gph of flow on my 3500 +/- gallon pond
 

ididntdoit99

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I dont think im losing a lot because of the back pressure... because toward the end of the pipe the stream doesn't have much pressure. Pretty much kept drilling holes until it trickled at the end to make sure i didnt have a lot of back pressure.

Even if i can't keep a clear pond with these pumps, i'll still keep the spray bar, i think it looks awesome, and i see the fish like to swim in the current it makes.
 
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Any idea what pump it is? You should be able to look up online what the actual flow is that it's pushing.

Not many pond pumps are listed at the following link but you might be able to get a idea from the following link what the flow is. I spend lots of time there getting info for my saltwater tank :)

http://reefcentral.com/index.php/head-loss-calculator

Yea... they love current!! If you don't already have one a UV light will keep green water away!
 

addy1

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My pump is only 4200 for my 10k or so pond, it does fine. You might end up being ok. But then again I do have a huge filter.
 

ididntdoit99

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No uv light, no chemicals, all natural thus far, current, filtration with just rocks and plastic beads, and lots of plants.
 

addy1

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v-cool

so where in nature are plastic beads found :)

Haven't you seen the plastic bead plants? they grow wild lol
I don't use any chemicals or uv lights either. Prefer as "natural" as a hole in the ground lined with plastic can be lol
 
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speaking of the wild.... for some reason your post reminded me of this thread...... give the video a minute or so


Also not a fan of chemicals..... my last pond setup was natural. two ponds at each end at a few thousand gallons each connected to a 30-40ft stream with plants etc in there. It was built over 20 years ago, worked great!
 

ididntdoit99

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v-cool so where in nature are plastic beads found :)

I think everywhere.... isnt that why they said I need to cut up my 6 pack plastic rings before I throw them in the lake :) Just kidding, I drink cases of beer on the lake. No the plastic isnt natural, but the plastic isnt filtering anything either, the bacteria growing on the plastic is.
 

ididntdoit99

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Few weeks in, water is crystal clear, do have quite a bit of algae growth right now, which is to be expected. I don't have a lot of plant growth right now to help combat the algae growth.

I did end up ordering a bigger pump today, it doesn't look like I necessarily need it, but saw it on harbor freights website on sale, and I figured I might as well. Also added two more koi today. I'll post pictures when i get them uploaded.

http://www.harborfreight.com/submersible-waterfall-pump-68418.html

link to that pump if anyone is interested in one.
 

addy1

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Great job! glad to hear all is going good.
 

ididntdoit99

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well, as you have probably heard, large storms in the midwest last night, no tornados here, but it was the first real rain we have gotten since i rebuilt the pond. So water is pretty cloudy this morning, it gave me a good idea of areas i need to fix, places I have rain runoff. So I'll be working on that today.
 

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