Quote Originally Posted by j-rho View Post
Hello everyone,
I am designing my first pond and could use some help piecing together everything I need for filtration.

Some background on the pond and its location:
1. Will be oval-shaped, 18� long, 13� wide, 5 feet deep, 7500-8000 gallons. Poured concrete floor, concrete block walls, sprayed polyurea coating. Waterfall.
2. Plan to keep stock levels quite modest, roughly 10 fish.
3. I�m in San Diego, temperatures stay pretty warm year-round.

Some requirements I have:
1. Backyard is somewhat small (regular suburban Southern California house) � as such, I don�t want to take up any more space for the pond�s filtration system than I have to. I plan to hide/enclose the filtration equipment as much as possible. I�ve seen the huge splashy towers of rocks in milk crates, that�s not for me, even if it is a bit cheaper and preferred by 8 out of 10 Koi in a non-partisan poll.
2. Would like to keep things as low maintenance as reasonably possible � don�t mind a couple minutes each day and maybe a bit more on the weekends, but would like to be able to go on vacation for 2 weekends without having to train a housesitter on a complex maintenance process, or suffer anxiety over a pond full of expensive cat food upon return.

It is sunny here and we are installing a large solar panel system. While I don�t want to use any more power than necessary, a little extra power consumption to keep space consumption lower, is okay.

I am very mechanically adept and understand pumps, plumbing, electronics. I�ve maintained my father�s large salt water aquarium system when he goes on vacation� once I see an assembled system I can figure out how it all works. Of course, designing a system is entirely different than understanding something already built.

I�ve bought a couple books and been reading the online forums to get an idea of what a person needs to keep their pond healthy � as most of you veterans know, no two people seem to completely agree on the �right� solution, hence my difficulty in deciding exactly what to do. I sure don�t want to do this stuff twice.

In my research I came across the aquabead.com website, and I find a mostly-complete pre-fab filter solution like their AquaBead PLUS system appealing, the 10,00gal/4.25 being the probable size. I�m not against DIY, but there are enough other projects going on to keep that part of me satisfied (like, permit-ing and building the whole thing). There may be better or more complete pre-fab kits out there, might be interested in those too.

Based on my limited learning-
Sources of water and crap from the pond:
1. I'll want two bottom drains. They'd be aerated, with the pond bottom bowled to direct crap to the drains.
2. I need one (maybe two?) skimmers. I am landscaping the yard and have been careful to select plants and trees that won�t drop stuff into the pond.

Water returns to the pond:
1. Waterfall, can be turned off if it gets cold (it was 59 this morning ,burr!)
2. 3-4 jets, or "TPRs" as they are abbreviated here, to get that swirly motion in the ocean

Amongst my haze, the part in the middle is the fuzziest. In general, I *think* the flow is something like this:
Pond -> Filter Out Big Stuff -> Filter Out Small and Biological Stuff, Gas Exchange -> Zap Algae with UV -> Pond

So, for a pond of this size, should I be looking at a single "circuit" of filtration, performing all three steps, as the AquaBead system does? Would this filtration circuit pull from all three sources (both bottom drains and skimmer), or a subset? If I were to split into multiple circuits, would both circuits perform all three functions in parallel, or split? It might be good to have two pumps in some sort of parallel/redundant config should one fail. I'm not sure the 1/3hp pump in the above AquaBead kit is adequate to move all the water need for this pond, including the waterfall. Where should all this equipment be located vertically with respect to the pond's water level (at surface, below, etc.)?

Basically, I could use some guidance on what to do about that part "in the middle" where the water magically goes from crappy to clean, based on my requirements and desire to use as much of a proven pre-fab'd system as possible. Once I know all the components to use, I can plan their layout and space requirements.

Many thanks in advance for your guidance and Koi-operation! I promise to return the favor with many pics of the process and finished product.

--Jason Rhoades
Hi Jason,
first of all I would like to Congratulate you because I did and achieved something in your life and I want to give you a suggestion for your question or you can take help of any engineer website.
Thank you


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