Up flow wetland bog filter

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I installed the filter on the pond and even attached stickers.

Everything works well, I set the grid cleaning timer every hour. If the mesh becomes clogged with dirt faster, the emergency float will work and the filter will start on its own. I like the way it works, I sit and meditate.
If anyone is interested, here is the store raufilter.com

Please share your filters and feedback on them.
Funny you install is identical to the one on the manufacture's website, you even have the same chairs and table. Image from Rai website

Don't you think it a bit unethical to pretend to be a customer.

rai media.jpg
 
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What kinda reward satisfaction or anything does posing as something your not do for someone i don't get it
 
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Just a point to make here Guys, for a 'Constructed Upflow' to work effectively, it needs the appropriate pressure to keep the 'Centipede' clear, which itself should be inclined at a shallow angle, which facilitates flushing from just one 'Snorkel', so you won't NEED two. In reality, after two & a half years of use, my 'Negative Edge' re-entry is as strong as ever, with crystal clear water & 100% bio stability & a PH of c6.8, AND happy happy Koi :)
 
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Good
Now do you think running it like this as an up flow system would be better then running it in reverse direction as a down flow system?
Conventional 'Downflow' beds WILL clog, requiring 'Blowback' flushing quite regularly, whereas 'Upflow' dumps the detritus in the 'Centipede' & suitable pump flow keeps it in solution down there until bacterially dissolved!
 
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Back to the original question: "if I could just dump water into the snorkel I could then just use an air lift pump saving on the electric bill each month."

Does it matter whether you add water to the top of your snorkel or to a pipe coming from a pump that is sitting in your pond? No. You need pressure to force the water through your gravel. With a clean (new) bog with large cross-sectional area, the required pressure is nearly nil. But let's assume that there's a little bit of dirt and/or that the bog isn't that large. We'll measure the pressure required in vertical inches of water -- how tall a water column would you need to push the water through. Let's say it is a hair under 2". That means that if you dump water into the top of your cleanup pipe, you'll need to raise the level of water in the pipe by 2" (2" above the bog surface level) in order get water to flow. Another way to view that is that as you add water to the snorkel, the level will not drop below 2" above the bog. So now your pump, whether magflo or airlift or small child with a bucket, has to lift the water from the pond 2" in order to get the water to flow: the "head" for the pump is 2".

If you instead use a pump somewhere in the pond and pump water directly into the bottom of the bog, you have to do exactly that same amount of work -- 2" of head. (Pascal's law.)

So from that analysis, you do not gain anything by putting the water into the snorkel versus directly into the bottom of the pond. Of course, I am ignoring the resistance of the pipe that you use to pump the water in. The snorkel is likely very wide, so it contributes essentially no resistance. The pipe, on the other hand, will add resistance, depending on internal diameter and flow rate. Typical values are 6' per 100' of pipe (1.5" pipe @ 1800 gph, 2" @ 3600 gph, 3" @ 10,000 mph). (Google "friction loss (in feet of head) per 100' of pipe") Bends in the pipe, especially right angle bends, add still more resistance. So the snorkel saves on that. BUT - you don't want to scoop your water off the top of the bog, so you still need piping to bring the water in from the pond. Bottom line (pun intended) -- I think you'll find that putting the water into the snorkel, versus pumping it "directly" into the pond bottom, are essentially equivalent.

By the way, I thought that DC pumps would save me a whole lot of $. I have a 40,000 gallon pond with an 9000 gph pump going into a 13x13' bog. That's 800 watts, about 7 Mwh/year, which at 15 cents a kilowatt hour is $1000 a year! Ouch! With a DC pump I can cut that in half. But AC pumps typically are relatively insensitive to small amounts of head - mine generates 30' or more of head and flow drops maybe 10% with 5' of head. A DC pump, on the other hand, will often only generate 5'-10' of head, and flow is proportional to head. A DC pump that generates 10' of head will typically generate half its rated flow with 5' of head. Check the specs before you buy!

larry
 
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@tarry I do have my feed into my bog6 by the water being introduced by the snorkel. I pump first to a bakki shower. Then it dumps into the top of the snorkel. Been doing this for three years now and the water barely raises a 1/2inch but my bog is 20x8 and 6 feet deep the snorkel is an extra foot deep than is the snorkel
 

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