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Thread: Skimmer is not sucking with pump on!

  1. #61
    catfish whiskers's Avatar
    catfish whiskers is online now
    catfish whiskers
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    Under "normal " operation, My bottom drain lines get coated inside with what I believe has been identified as either a kind of fresh water sponge , or an insect larvae ?
    Anyway , whatever it is , it must love hi flow areas, because it grows and slows down the flow in My BD lines, and I have to clean it out about twice a year. It fills about a 5 gal bucket , and I see a big improvement in flow afterwards.
    I think someone once mentioned that Dimlin will kill it and keep the lines clear , but I prefer to mechanically clean it with a dryer flue brush from H Depot

  2. #62
    vvnguyen1981 is offline
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    Question on bio filter media. So as you guys can see, I have the 2nd 125 gallon which I will be using as my bio filter. One of my biggest goals will be trying to build up beneficial bacteria in this bio filter. I really like the idea of K1 floating media? Thoughts? It seems to make sense to me that floating media will produce better results since it is always in motion.

    I also am using lava rock in my design of my pond along with big parts of my water fall.

    Thanks.

  3. #63
    Huysy's Avatar
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    K1 is a great option for your bio filter. With 125 gallons, you can add a little now and have room to add more later if you need it. My recommendation is to research and read as much as you can on the construction of a moving bed filter. You will have questions like how much media to add for the amount you are feeding? how much air do you need for the K1 to boil? Why isn't the media boiling initially? What height do your pipes enter and leave the filter? How can I account for draw down issues? How can I minimize my pump sucking air? etc. The information is there if you want to know. Ask lots of questions, and really consider following the advice of those who have built them.

  4. #64
    vvnguyen1981 is offline
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    Back with an update. This was my 5th weekend working on my build. We only worked Saturday!

    So I currently have my spill way and TPR jet going at the same time. I still will be finishing up my bio-falls but that will have to wait till next week. So far, my pump seems to be operating just fine. I have the inlet controlled by a three way valve. Skimmer line on one while my bio 125 gallon drum is on the other. Bottom drains are functioning fine since my first settlement drum is being pulled by the second bio drum. Both those drums have a water level about 5"-8" below the ponds water level while the pump is on.

    I plan to keep this going this week to see if there are any water level changes. (leaks or water slipping out)

    I also took the time to test both drum's backwash valves. Each has its own ball valve and runs down the side of my home toward the front which is about 10 feet lower then where my pond is. I closed the knife valve on the 1st drum which cuts any pond water from coming into the barrels. I was able to completely empty both 125 gallon drums individually. Awesome.

    Anyways ... Here are status photos thus far.
    Attached Images Attached Images   

  5. #65
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    Looking good. I'm so glad that you have that concrete collar in place. You won't regret it in the long run.

  6. #66
    icu2's Avatar
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    Looks great and glad the plumbing seems to be working better.
    --Steve
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