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Thread: Help me tweak the airlift on my new pond

  1. #11
    Oyagoi woodyaht's Avatar
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    Quote Originally Posted by CarolinaGirl View Post
    I think I have it figured out. I tee'd off some air and ran it to the diffuser in the fluidized bed. There is a ball valve in the line (it's 1" PCV and the valve is mostly closed). I have it rolling pretty good and still have 5400 gph coming from the air lift. This will work!
    Good for you!!!!!!!!!!!!!!

    What ever happened to the piston air pump?

  2. #12
    Oyagoi CarolinaGirl's Avatar
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    I didn't get it yet, but I probably will. It's so cheap I'd hate to not give it a try.

  3. #13
    Sansai
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    Carolina Girl, I love your pond plumbimg!! Just for future experiments for my pond what is the total length of your airlift pipes? And these are 4", 2" or 1 1/2"? Outstanding job!

  4. #14
    Sansai
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    Deleted, duplicate post

  5. #15
    Oyagoi kntry's Avatar
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    Cindy, in your first post you said there are 4, 4" pipes coming off the header but it should be 2" pipes.

    If I read this right, you only have 1 air tube supplying each pipe now, right?

  6. #16
    Honmei ricshaw's Avatar
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    Quote Originally Posted by kntry View Post
    If I read this right, you only have 1 air tube supplying each pipe now, right?
    Nope, two air tubes to each pipe.


  7. #17
    Oyagoi CarolinaGirl's Avatar
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    Quote Originally Posted by kntry View Post
    Cindy, in your first post you said there are 4, 4" pipes coming off the header but it should be 2" pipes.

    If I read this right, you only have 1 air tube supplying each pipe now, right?

    sorry...yes there are four 2" pipes. There was two air lines going to each pipe but there was no air making it to the last two pipes and no water coming out. The flow was only 3600 gph. I pinched off one of the lines to each pipe and now water flows evenly out of all 4 pipes at the rate of 9000 gph.

  8. #18
    Oyagoi CarolinaGirl's Avatar
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    Quote Originally Posted by GloriaL View Post
    Carolina Girl, I love your pond plumbimg!! Just for future experiments for my pond what is the total length of your airlift pipes? And these are 4", 2" or 1 1/2"? Outstanding job!
    thanks Gloria. They are 2" pipes, a little over 5' long so that the air is injected into each 5' below water level. I used uniseals to get the 2" pipes into the 4" pipe. That's a 2-person job. One person has to hold the uniseal to follow the contour of the hole while the other person pushed the pipe in.

  9. #19
    Oyagoi kntry's Avatar
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    Gotta love Uniseals!

  10. #20
    Oyagoi CarolinaGirl's Avatar
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    Oh I just LOVE uniseals. I saw on the Uniseal web site a picture of uniseals being used to connect two different sized PVC, I was surprised that you could do this. When I was doing it though, I thought there was no way that would work. But it did! And it was much cheaper than using four 4"x4"x2" tees and took up way less space than four tees would have required.

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