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  • Page 2 of 13 FirstFirst 1234512 ... LastLast
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    Thread: 55 Gal Drum Sand and gravel filter/DIY

    1. #21
      Kent Wallace's Avatar
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      The air blower is a 1 hp which is still too large for the filter and is only used for cleaning. William's large EZR uses a 2 hp blower but with this small a diameter the connecting loop for the blower gets a 1/2 inch bleed hole drilled in it to get rid of some of the air. I haven't been able to find a smaller blower.
      If you have air blowers on other filters you could tee over to this filter and place a valve on another tee to bleed off the air by adjusting it to the proper setting depending on your blower.
      If you try to use the blower at full power it will literally launch the contents of the filter over the edge and into the pond. If your not comfortable just drilling a hole and aren't using the same blower I am, the tee with the valve for bleed off adjustment is a good way to go.
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      Last edited by Kent Wallace; 03-06-2006 at 01:13 PM.

    2. #22
      Kent Wallace's Avatar
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      If you wish, you could go up and over the side or just stub the air line straight up with the blower above the filter and the bleed hole out the side if it's in a filter pit or a filter shed and visual appearance isn't an issue.
      You could do the same with the water inlet pipe if you wished.
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    3. #23
      Kent Wallace's Avatar
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      One other note, the water inlet pipe should get a 3/16 bleed hole drilled in the lower portion aiming down into the water. This hole eliminates the need for a check valve and prevents siphoning if the system goes off. You do not want what gets trapped in this filter to back flow into the pump or pond.
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    4. #24
      Kent Wallace's Avatar
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      To clean this filter you shut the pump down and open the drain a little and let the water go down a couple of inches below the spill or outlet pipe. The bottom drain is good for this and it can actually be opened at any time for a quick flush of the bottom.
      Close the drain and turn on the blower for a few seconds. Shut off the blower and open the upper drain. Turn on the pump and let the filter flush itself from the bottom up until the water runs clear. If the water climbs and tries to go over the spill or through the outlet depending on drainage flow just shut the pump down for a few seconds and turn it back on.
      Do not run the air blower with the upper drain open. You will lose sand. Over time you may need to add a little sand ocassionally anyway.
      Once the water runs fairly clear you're done and remember to close the valve from the air blower. If the filter is really dirty do it again.
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      Last edited by Kent Wallace; 03-06-2006 at 01:39 PM.

    5. #25
      emmalou is offline Inactivated
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      I was wondering how one would clean that filter with all the sand.....

    6. #26
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      Kent,

      Have you ever had occasion to bury one of these completely? I think that might be a lbit difficult because of the valves that need to be accessed....
      Ive always been intrigued by these, but in my situation it would have to be sunk into a hillside.
      Luke

    7. #27
      Kent Wallace's Avatar
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      As long as you have access and flow, bury it!

    8. #28
      Cowiche Ponder's Avatar
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      ok dumb question..doesn't the blower mix all the different gravels and sand together? Or because of weight the sand is the lightest and stays on top 3/8 is next ....??

      I'm sending this thread to my hubby

      Can this kind of filter be made in a larger barrel/container? I would assume that a round shape is best or easiest?

    9. #29
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      Kent you are the man , if anyone ever pays you to build a pond within a few hours drive of me, you yell and I will work for free to see this stuff up close, nothing like hands on for learning.
      My favorite Quotes:

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    10. #30
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      Kent, in the first pic on this page, what is the little white and green thingy inside the 1/2 hole?

      Can you post a thread on how you built the SC and the pvc ribbon chamber?


      Thank you so very much for posting this. I can't wait to build this.

      Oh, where do you find all the barrels to do this with?
      Sandy
      CKK, KHA

    11. #31
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      Quote Originally Posted by Leekinneykoi
      Kent you are the man , if anyone ever pays you to build a pond within a few hours drive of me, you yell and I will work for free to see this stuff up close, nothing like hands on for learning.
      Ive kinda wondered the same thing, Lee. I wonder how my wife would take to the news that Im going to Las Vegas (without her) to work (for free)?

    12. #32
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      This filter looks great, I am trying to decide on the final filter for my pond which isn done yet.

      how would you clean/maintain this? just blow it out? back flush? I dont have an air compressor.

      wouldnt all the sand just work its way to the bottom?

    13. #33
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      Also I dont understand the bulkhead you put below the outlet/spillway??? whats that for?

    14. #34
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      Nevermind...I just figured it out. Great filter man!!!!!!! I am going to have to make one. Thanks.

    15. #35
      Kent Wallace's Avatar
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      Mary the layhers stay layered. The bottom rock is too large to fall throught the holes in the plate, the 3/8 center layer won't fall through the gaps between the rock and the sand won't fall through the 3/8 layer. The filter is in a constant state of upflow during operation and cleaning.

      Sandy that's the flash showing the green glue on the inside of the tube. I don't necessarily "make" the static prefilter as much as I assemble it. The grey baskets I have are samples, the production baskets should be in black and available within 2 to 4 weeks. I have to buy piles of them at a time. Then I add some holes and install my outlet ball in the center to contain the media.

      Photog, the air blower is for the cleaning proces, not for filter operation. My last pics show how to clean it.

    16. #36
      Leekinneykoi's Avatar
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      Quote Originally Posted by luke-gr
      Ive kinda wondered the same thing, Lee. I wonder how my wife would take to the news that Im going to Las Vegas (without her) to work (for free)?
      I would not attempt that , you better take her and drop her at a casino with a few days worth of nickles and quarters.
      My favorite Quotes:

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      Everything starts as somebody's daydream
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    17. #37
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      Kent, when you go into production on the static chamber, are you going to make one to fit a 55 gal barrel? will you make them with various size suction pipe and balls? I need 4" pipe in a 55 gal size. Price?

      William

    18. #38
      Kent Wallace's Avatar
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      William, yes I have 18 inch ones also.
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    19. #39
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      Thanks, Kent. I will PM for prices.

      William

    20. #40
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      There is a bit more info on these filters and some other pics on another great thread of Kents. Check out pages 7-10 at http://www.koiphen.com/forums/showth...highlight=pond
      Last edited by luke-gr; 03-07-2006 at 02:23 PM.

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